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Confusing words explained

“accuracy” vs “precision” — What’s the Difference?

Accuracy: correct value; Precision: consistent/repeatable

Key takeaway

Quick Difference: accuracy vs precision

Accuracy: correct value; Precision: consistent/repeatable

accuracy /ˈækjərəsi/ precision /prɪˈsɪʒən/

accuracy vs precision Side-by-Side Comparison

Meaning of accuracy

Noun B1 Neutral
Meaning

The quality of being correct and precise in detail

Short definition

How close something is to the true or correct value. Accuracy means no errors.

Rule of thumb

Use for correctness of values or information

Examples
  • This test shows good accuracy. A2 academic
  • We checked the accuracy of the numbers. B1 daily

Meaning of precision

Noun B1 Neutral
Meaning

The quality of being exact and consistent in detail

Short definition

How exact and detailed something is. Precision means consistency and refinement.

Rule of thumb

Use for consistency and exactness of measurements

Examples
  • This ruler shows precision. A2 daily
  • The engineer needs high precision. B1 academic

Usage Notes & Nuance

accuracy: Essential in science, medicine, and technical fields

precision: Critical in engineering, mathematics, and scientific research

How to Remember the Difference

Accuracy hits the bullseye; precision hits the same spot every time, even if it's off-centre.

Common Mistakes with accuracy and precision

Mistake with accuracy

Correct: Accuracy = correct; Precision = consistent

Mistake with accuracy

Correct: Precision does not guarantee accuracy

Mistake with precision

Correct: Precision means consistent and detailed measurements

Mistake with precision

Correct: Accuracy = correct; Precision = consistent

Practice Quiz: accuracy or precision?

Choose the word that best completes each real example sentence.

Question 1

This test shows good _____.

Question 2

We checked the _____ of the numbers.

Question 3

Medical professionals need _____ in their work.

Pick at least one answer, then press Check answers to see how you did.

Frequently Asked Questions About accuracy vs precision

What’s the difference between “accuracy” and “precision”?

Accuracy: correct value; Precision: consistent/repeatable

When should I use “accuracy”?

Use for correctness of values or information

When should I use “precision”?

Use for consistency and exactness of measurements

How can I remember accuracy vs precision?

Accuracy hits the bullseye; precision hits the same spot every time, even if it's off-centre.

Is it “accuracy” or “precision” in example sentences?

Use the quiz above to test the pair with real example sentences from the available word data.

Explore accuracy and precision Individually