Calculating your per mille (‰) is straightforward once you know the Per Mille (‰) 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 Per Mille (‰) Calculator.
What is Per Mille (‰)?
The Per Mille (‰) calculation tells you your per mille (‰) from a few simple inputs. The figure you are solving for here is the per mille (‰).
The Per Mille (‰) formula
The core formula is:
Per mille (‰) = Part value ÷ Total value × 1000Here is what each input means:
- Part value — a number. Example: 15.
- Total value — a number. Example: 2,000.
How to calculate it step by step
- Write down the part value (for example, 15).
- Write down the total value (for example, 2,000).
- Apply the formula above to get your per mille (‰).
- Double-check the result with the Per Mille (‰) Calculator.
Worked examples
Example 1
| Input / Output | Value |
|---|---|
| Part value | 15 |
| Total value | 2,000 |
| Per mille (‰) | 7.5000 |
| As a percentage | 0.7500% |
With part value of 15 and total value of 2,000, the per mille (‰) works out to 7.5000.
Example 2
With part value of 30 and total value of 2,000, the per mille (‰) works out to 15.0000.
| Result | Value |
|---|---|
| Per mille (‰) | 15.0000 |
| As a percentage | 1.5000% |
Example 3
With part value of 7.5 and total value of 2,000, the per mille (‰) works out to 3.7500.
| Result | Value |
|---|---|
| Per mille (‰) | 3.7500 |
| As a percentage | 0.3750% |
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 Per Mille (‰) Calculator does it instantly, for free, with the formula and a worked example built in.
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