When writing or speaking English, many people wonder about the difference between “is equal to” vs “equals.”
Both expressions are common, especially when talking about mathematics, numbers, measurements, values, and comparisons.
However, they do not always appear in the same sentence patterns.
The confusion usually happens because both expressions describe the idea that two things have the same value or meaning.
For example, in mathematics, we often see sentences like “Five plus five equals ten” and “Five plus five is equal to ten.” Both are correct, but they are used slightly differently.
Understanding is equal to vs equals helps you write clearer sentences, avoid grammar mistakes, and choose the most natural expression for mathematical, academic, technical, and everyday contexts.
In this guide, you will learn when to use is equal to, when to use equals, how they differ in grammar, why people confuse them, and which form sounds more natural in different situations.
Quick Answer
“Equals” and “is equal to” are both correct, but they are used differently.
“Equals” is usually used as a verb, especially in mathematical equations:
5 + 5 equals 10.
“Is equal to” is a phrase used for describing equality or comparison:
The value of X is equal to 10.
Is Equal To vs Equals: Quick Comparison
| Feature | Is Equal To | Equals |
|---|---|---|
| Meaning | Having the same value, amount, or status | Producing the same result or having the same value |
| Grammar | Verb phrase | Verb |
| Part of Speech | Linking verb + adjective + preposition | Main verb |
| Common Use | Descriptions and comparisons | Equations and calculations |
| Mathematical Use | Correct | Very common |
| Formality | Neutral and slightly more explanatory | Direct and concise |
| Pronunciation | /ɪz ˈiːkwəl tuː/ | /ˈiːkwəlz/ |
| Example | 10 is equal to 5 + 5 | 5 + 5 equals 10 |
| Best For | Explaining relationships | Showing results |
| Common Mistake | Using it as the only choice in equations | Using it when describing a noun relationship |
| US English | Common | Very common |
| UK English | Common | Very common |
Understanding “Is Equal To”
“Is equal to” means that two things have the same value, quantity, amount, importance, or status.
It shows a relationship between two things that are considered the same.
Examples:
- Two dollars is equal to two hundred cents.
- The length of this line is equal to the length of that line.
- Is Equal To vs Equals
In each example, one thing is being compared with another.
Grammar of Is Equal To
The expression “is equal to” contains three parts:
- is → linking verb
- equal → adjective
- to → preposition
The structure is:
Subject + is equal to + comparison
Examples:
- 8 is equal to 4 + 4.
- Is Equal To vs Equals
- The two measurements are equal to each other.
Because equal is an adjective here, it describes the condition of the subject.
When to Use Is Equal To
Use “is equal to” when you want to explain that two things have the same value or quality.
It is especially useful in:
Explanations
When teaching or explaining a concept:
- One kilometer is equal to 1,000 meters.
- Is Equal To vs Equals
Formal Writing
In academic and technical writing:
- The final result is equal to the average of all measurements.
- Is Equal To vs Equals
Comparisons
When comparing two things:
- Her experience is equal to that of a senior employee.
- Is Equal To vs Equals
Is Equal To in Mathematics
In mathematics, “is equal to” is completely correct.
Examples:
- 20 divided by 4 is equal to 5.
- Is Equal To vs Equals
- The area of the square is equal to 64 square centimeters.
However, mathematicians often prefer shorter expressions with equals because equations are usually written as relationships between values.
For example:
More natural:
- 10 + 5 equals 15.
Also correct:
- 10 + 5 is equal to 15.
Common Situations Where Is Equal To Sounds Better
When Defining a Value
- Is Equal To vs Equals
- The variable is equal to the number shown above.
When Explaining Rules
- One hour is equal to sixty minutes.
- One meter is equal to one hundred centimeters.
When Comparing Non-Numerical Things
- Respect is equal to trust in a healthy relationship.
- Is Equal To vs Equals
Understanding “Equals”
Meaning of Equals
“Equals” means “has the same value as” or “results in the same amount.”
It is most commonly used when something produces a result.
Examples:
- Three plus seven equals ten.
- Is Equal To vs Equals
- The answer equals the correct solution.
Grammar of Equals
“Equals” is a verb.
The structure is:
Subject + equals + result
Examples:
- 6 × 6 equals 36.
- Is Equal To vs Equals
- The total equals the original amount.
The word equals changes depending on the subject.
Examples:
- One plus one equals two.
- Is Equal To vs Equals
But with plural subjects, we usually use equal:
- These numbers equal the same value.
- Is Equal To vs Equals
Equals in Mathematics
The most common use of equals is in mathematical expressions.
Examples:
- 7 + 3 equals 10.
- 100 ÷ 5 equals 20.
- Is Equal To vs Equals
It is popular because it is short, direct, and easy to understand.
Mathematical language often prefers:
Expression + equals + answer
Example:
- 15 – 5 equals 10.
Equals in Everyday English
Although many people associate equals with mathematics, it is also used in normal conversation.
Examples:
- Is Equal To vs Equals
- More experience often equals better opportunities.
- A higher price does not always equal better quality.
Here, equals means “leads to” or “is the same as.”
Professional and Academic Use of Equals
In professional writing, equals is often used when showing direct relationships.
Examples:
- Higher productivity equals greater efficiency.
- Increased demand equals higher production costs.
- Is Equal To vs Equals
In academic writing, it is useful when explaining formulas, theories, and relationships.
Key Difference Between Is Equal To and Equals
The main difference is not meaning. Both expressions communicate equality.
The difference is their grammar and sentence structure.
Is Equal To Describes Equality
Is equal to focuses on the relationship between two things.
Example:
- The value of this variable is equal to 50.
Meaning:
The variable has the same value as 50.
Equals Shows a Result
Equals often focuses on the outcome of an action or calculation.
Example:
- 25 + 25 equals 50.
Meaning:
The calculation produces the result 50.
Simple Way to Remember
Think of it this way:
Equals = gives the answer
Example:
- 5 + 5 equals 10.
Is equal to = explains sameness
Example:
- Ten is equal to five plus five.
Both sentences are correct, but the focus changes.
Are Is Equal To and Equals Interchangeable?
Sometimes yes, but not always.
They can often replace each other in mathematical sentences.
Examples:
Both correct:
- 4 + 6 equals 10.
- 4 + 6 is equal to 10.
However, they do not always sound equally natural.
Example:
Natural:
- The answer equals 20.
Less natural:
- The answer is equal to 20.
Natural:
- One mile is equal to 1.6 kilometers.
Less natural:
- One mile equals 1.6 kilometers.
Both are grammatically possible, but native speakers choose based on context.
Grammar Explanation of Is Equal To vs Equals
Understanding the grammar behind these expressions makes it easier to choose the correct one.
Both expressions communicate the idea of equality, but they work differently inside a sentence.
Is Equal To as a Verb Phrase
The expression “is equal to” is not a single verb. It is a combination of words that functions as a verb phrase.
The structure is:
Subject + is/are + equal to + object
Examples:
- Is Equal To vs Equals
- The two values are equal to each other.
- The distance is equal to five kilometers.
Notice that the verb changes depending on the subject.
Singular Subject
Use is equal to:
- Is Equal To vs Equals
- The price is equal to the original cost.
Plural Subject
Use are equal to:
- Is Equal To vs Equals
- The measurements are equal to the required standard.
Equals as a Verb
Equals is a regular verb.
The structure is:
Subject + equals + object
Examples:
- Is Equal To vs Equals
- The final amount equals $500.
- The total equals the expected value.
The verb form depends on the subject.
Singular Subject
Use equals:
- Is Equal To vs Equals
- The calculation equals the correct answer.
Plural Subject
Use equal:
- Is Equal To vs Equals
- The two methods equal each other in effectiveness.
Verb Agreement Rules
One of the biggest mistakes people make is forgetting subject-verb agreement.
With Is Equal To
Singular:
✔ The number is equal to 10.
Plural:
✔ The numbers are equal to 10 and 20.
Incorrect:
✘ The numbers is equal to 10.
With Equals
Singular:
✔ Five plus five equals ten.
Plural:
✔ The two values equal the same amount.
Incorrect:
✘ Five plus five equal ten.
Sentence Position and Structure
The position of these expressions affects how natural the sentence sounds.
Using Equals Before a Result
This pattern is common in mathematics:
Calculation + equals + answer
Examples:
- 12 × 5 equals 60.
- 100 minus 25 equals 75.
Using Is Equal To for Descriptions
This pattern explains a relationship:
Thing being described + is equal to + comparison
Examples:
- The value of X is equal to 15.
- The amount of work is equal to the previous project.
Mathematical Usage: Is Equal To vs Equals
Mathematics is the area where people most often see these expressions.
Both are correct.
However, mathematicians usually prefer equals because it is shorter and clearer.
Common Mathematical Examples
Using Equals
- 8 + 12 equals 20.
- 9 × 9 equals 81.
- 100 ÷ 4 equals 25.
Using Is Equal To
- The value of y is equal to 20.
- Is Equal To vs Equals
- The two sides of the equation are equal to each other.
Scientific and Technical Writing
In science and technology, both forms appear.
The choice depends on the purpose.
When Explaining a Formula
Is equal to is often preferred:
- The speed of light is equal to approximately 299,792 kilometers per second.
Why?
Because the sentence explains a fact.
When Showing a Calculation
Equals is preferred:
- Distance equals speed multiplied by time.
Why?
Because it shows a direct relationship.
Everyday English Usage
Outside mathematics, equals often has a broader meaning.
It can mean:
- produces
- leads to
- represents
- Is Equal To vs Equals
- has the same value as
Examples:
- More practice equals better performance.
- A bigger budget does not always equal better results.
- Is Equal To vs Equals
Here, equals sounds natural because it shows a connection between two ideas.
Professional Writing Examples
In business and workplace writing, both expressions can appear.
Using Equals
- Higher customer satisfaction equals stronger brand loyalty.
- More efficient processes equal reduced operating costs.
- Is Equal To vs Equals
Using Is Equal To
- The final payment is equal to the agreed amount.
- The employee’s contribution is equal to the required standard.
- The new budget is equal to last year’s budget.
Academic Writing Examples
Academic writers often use these expressions when explaining theories, formulas, and comparisons.
Examples:
- The calculated value is equal to the expected result.
- The probability equals the number of successful outcomes divided by total outcomes.
- One hypothesis does not equal another hypothesis.
In academic contexts, clarity matters more than choosing one expression.
Real-Life Examples of Is Equal To vs Equals
Everyday Conversation
- “Ten minutes of exercise is equal to a short workout session.”
- “Five hours of study equals better preparation.”
- “This amount is equal to what we paid last month.”
- “One mistake does not equal failure.”
School Examples
- “The answer is equal to the value written on the board.”
- “Seven multiplied by eight equals fifty-six.”
- “One liter is equal to one thousand milliliters.”
- “The final score equals the total points earned.”
Business Examples
- “The new contract value is equal to the previous agreement.”
- “Higher quality equals stronger customer trust.”
- “The final expense equals the approved budget.”
- “More investment does not always equal more profit.”
Email Examples
- “The updated invoice amount is equal to the amount discussed during our meeting.”
- “The total cost equals the estimate provided earlier.”
- “Your payment is equal to the outstanding balance.”
Professional Writing Examples
- “The final measurement is equal to the required industry standard.”
- “The formula equals the expected result.”
- “A higher position does not equal greater responsibility in every case.”
Social Media and Informal Writing
- “More likes do not equal more success.”
- “A busy schedule does not equal productivity.”
Common Mistakes With Is Equal To and Equals
Many learners use these expressions incorrectly because they focus only on meaning and ignore grammar.
Mistake 1: Using Equals With a Description
Incorrect:
❌ The answer equals to 50.
Why it is wrong:
The verb equals already includes the idea of “is equal to.” It does not need to.
Correct:
✔ The answer equals 50.
Better:
✔ The answer is equal to 50.
Mistake 2: Adding “To” After Equals
Incorrect:
❌ Five plus five equals to ten.
Why it is wrong:
“Equals” is already a complete verb.
Correct:
✔ Five plus five equals ten.
Mistake 3: Using Equal Without a Verb
Incorrect:
❌ The answer equal 20.
Why it is wrong:
A singular subject needs a verb.
Correct:
✔ The answer equals 20.
Mistake 4: Incorrect Subject Agreement
Incorrect:
❌ Two plus two equal four.
Why it is wrong:
The calculation is treated as one expression, so it takes a singular verb.
Correct:
✔ Two plus two equals four.
Mistake 5: Thinking One Expression Is More Correct
Incorrect idea:
“Equals is always correct in mathematics.”
or
“Is equal to is always more formal.”
Reality:
Both are correct. The choice depends on sentence purpose.
Is Equal To vs Equals in Formal Writing
Many writers believe is equal to sounds more formal, but this is not always true.
Professional writers choose based on clarity.
Use Equals When:
- Showing a formula
- Describing a result
- Explaining cause and effect
Examples:
- Revenue equals total sales minus expenses.
- Increased demand equals increased production.
Use Is Equal To When:
- Explaining a comparison
- Defining a relationship
- Teaching a concept
Examples:
- One inch is equal to 2.54 centimeters.
- The final value is equal to the original measurement.
US English vs UK English
There is no major difference between American and British English for these expressions.
Both forms are accepted in:
- American English
- British English
- Canadian English
- Australian English
Examples:
US:
- Ten dollars equals one hundred dimes.
UK:
- Ten pounds is equal to one thousand pence.
The choice depends on style and context, not region.
Style Guide Recommendations
Major style references such as:
- The Chicago Manual of Style
- Associated Press Stylebook
focus more on clarity and consistency than choosing one expression over the other.
Professional editing usually recommends:
- Use equals for calculations and formulas.
- Use is equal to for explanations and comparisons.
Memory Tricks
Trick 1: Equals Gives an Answer
Think:
Equals = Result
Example:
5 + 5 equals 10.
The calculation gives the answer.
Trick 2: Is Equal To Shows Sameness
Think:
Is equal to = Same as
Example:
10 is equal to 5 + 5.
The two sides have the same value.
Trick 3: Remember the “To”
If you see to, use:
✔ is equal to
If you use:
✔ equals
Do not add to.
Wrong:
❌ equals to
Correct:
✔ equals
FAQs
Is “is equal to” grammatically correct?
Yes, “is equal to” is completely grammatically correct.
It is a common expression used to show that two things have the same value, amount, meaning, or importance.
Examples:
- One hour is equal to sixty minutes.
- The value of X is equal to 25.
- The two measurements are equal to each other.
It is especially useful when explaining relationships rather than simply showing a calculation.
Is “equals” grammatically correct?
Yes, “equals” is also grammatically correct.
It is a verb that means “has the same value as” or “produces the same result as.”
Examples:
- Five plus five equals ten.
- The total equals the final amount.
- Higher quality does not always equal higher prices.
The important rule is that equals does not take “to” after it.
Correct:
✔ 8 + 2 equals 10.
Incorrect:
✘ 8 + 2 equals to 10.
Are “equals” and “is equal to” interchangeable?
Sometimes they are interchangeable, especially in mathematics.
Examples:
Both correct:
- 6 + 4 equals 10.
- 6 + 4 is equal to 10.
However, they are not always equally natural.
For describing a relationship:
More natural:
- One kilogram is equal to 1,000 grams.
For showing a result:
More natural:
- 500 grams equals half a kilogram.
The context determines which expression sounds better.
Which is better: “equals” or “is equal to”?
Neither expression is always better.
The best choice depends on your purpose.
Use equals when:
- Showing calculations
- Giving results
- Explaining formulas
- Showing cause and effect
Example:
- Profit equals revenue minus expenses.
Use is equal to when:
- Comparing values
- Explaining concepts
- Defining relationships
Example:
- The final score is equal to the required score.
Is “equals to” correct English?
No, “equals to” is generally considered incorrect in standard English.
The verb equals already contains the meaning of “is equal to,” so adding to is unnecessary.
Incorrect:
❌ The answer equals to 50.
Correct:
✔ The answer equals 50.
Correct:
✔ The answer is equal to 50.
Should I use “equals” in mathematical equations?
Yes.
In mathematics, equals is the most common and natural choice.
Examples:
- 15 + 15 equals 30.
- 100 divided by 5 equals 20.
- 3 squared equals 9.
It is short, clear, and widely understood.
Is “is equal to” more formal than “equals”?
Not necessarily.
Both expressions can be used in formal writing.
The difference is mainly about function, not formality.
Examples:
Formal:
- The value is equal to the standard measurement.
Formal:
- The final result equals the expected outcome.
Both are acceptable in professional and academic writing.
What is the difference between “equal” and “equals”?
The difference is grammar.
Equal can be an adjective or a verb.
Examples:
Adjective:
- The two values are equal.
Verb:
- The two amounts equal the same total.
Equals is the third-person singular form of the verb.
Example:
- Two plus two equals four.
Final Verdict
The answer is simple:
Both “is equal to” and “equals” are correct. They are not competitors where one is right and the other is wrong. They serve slightly different purposes.
Use equals when you want to show a result, calculation, or direct relationship.
Examples:
- 20 divided by 4 equals 5.
- Hard work equals progress.
- More experience equals better skills.
Use is equal to when you want to explain that two things have the same value, amount, or quality.
Examples:
- One mile is equal to 1.6 kilometers.
- The final amount is equal to the original price.
- Her performance is equal to the company standard.
Best Practice
For everyday and mathematical writing:
✔ Use equals for equations and results.
For explanations and comparisons:
✔ Use is equal to.
Avoid:
❌ equals to
Remember:
Equals gives the answer.
Is equal to explains sameness.
Conclusion
The difference between is equal to vs equals is mainly about grammar and usage, not meaning.
Both expressions communicate equality, but they focus on different things.
“Equals” is a direct verb that is commonly used in mathematics, formulas, calculations, and statements showing that one thing produces or represents another result.
Examples:
- 25 + 25 equals 50.
- Success equals consistent effort.
“Is equal to” is a descriptive phrase that explains that two things share the same value, amount, or quality.
Examples:
- One hundred centimeters is equal to one meter.
- The final result is equal to the expected value.
Neither expression is incorrect. The key is choosing the one that fits the situation.
If you are writing a mathematical equation, technical formula, or quick comparison, equals is usually the natural choice.
If you are explaining a concept, teaching a rule, or comparing two values, is equal to often provides clearer meaning.
The simplest rule to remember:
Use “equals” for results.
Use “is equal to” for explanations.
I am Julian Brooks, an English language enthusiast and content writer at EnglishAcademy. I create clear grammar lessons, vocabulary guides, and writing tips to help learners improve their English with confidence every day.