Calculating your score is straightforward once you know the Test Score formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the Test Score Calculator.
What is Test Score?
The Test Score calculation tells you your score from a few simple inputs. The figure you are solving for here is the score, expressed in percent.
The Test Score formula
The core formula is:
Score = Questions answered correctly ÷ Total questions × 100Here is what each input means:
- Questions answered correctly — a number. Example: 18.
- Total questions — a number. Example: 20.
How to calculate it step by step
- Write down the questions answered correctly (for example, 18).
- Write down the total questions (for example, 20).
- Apply the formula above to get your score.
- Double-check the result with the Test Score Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Questions answered correctly | 18 |
| Total questions | 20 |
| Score | 90.00% |
| Questions incorrect | 2 |
With questions answered correctly of 18 and total questions of 20, the score works out to 90.00%.
Example 2
With questions answered correctly of 36 and total questions of 20, the score works out to 180.00%.
| Result | Value |
|---|---|
| Score | 180.00% |
| Questions incorrect | -16 |
Example 3
With questions answered correctly of 9 and total questions of 20, the score works out to 45.00%.
| Result | Value |
|---|---|
| Score | 45.00% |
| Questions incorrect | 11 |
Tips for an accurate result
- Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
- Round only at the very end. Rounding inputs early can shift the final answer noticeably.
- Re-run the numbers whenever an input changes, rather than estimating from an old result.
Prefer not to do the maths by hand? — the Test Score Calculator does it instantly, for free, with the formula and a worked example built in.
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