Overtime Pay Percentage Calculator
Calculate overtime pay as a share of total pay for entered overtime pay.
How to use Overtime Pay Percentage Calculator
1. Choose Currency for all amounts, then enter Overtime Pay, Total Pay in the labelled units. 2. Total pay must be positive and include the overtime amount. Both values must be on the same gross or net basis and cover the same period; overtime pay cannot exceed the total of which it is a part. No overtime multiplier or legal entitlement is assumed. The arithmetic excludes tax, deductions, thresholds, time off in lieu and payroll rounding. A zero multiplier models no overtime pay; hours needed requires a positive resulting rate. 3. Select Calculate or press Enter to see the result. 4. Select Select Copy result to copy the answer, or Reset to clear the form.
Why use this tool?
Use Overtime Pay Percentage Calculator to compare your entered entered overtime pay assumptions with a stated formula and a reproducible example.
How the calculation works
Overtime pay percentage = overtime pay ÷ total pay × 100. Total pay must be positive and include the overtime amount. Both values must be on the same gross or net basis and cover the same period; overtime pay cannot exceed the total of which it is a part. No overtime multiplier or legal entitlement is assumed. The arithmetic excludes tax, deductions, thresholds, time off in lieu and payroll rounding. A zero multiplier models no overtime pay; hours needed requires a positive resulting rate. Choose one currency for every monetary input. The selector labels and formats amounts; it does not apply an exchange rate. Money displays use the selected currency’s standard minor units, including whole yen for JPY. Exact decimal arithmetic precedes rounding; halfway minor units round away from zero. Numeric input/result magnitudes are bounded by 9,007,199,254,740,991. UK background on contractual overtime arrangements: https://www.gov.uk/overtime-your-rights. The calculator uses entered assumptions and does not determine legal entitlement.
Example
Overtime Shift example: Currency = GBP; Overtime Pay = 120; Total Pay = 400. Result: 30%.
Practical tip
Enter the multiplier specified for the pay arrangement being modelled. For example, 1.5 means 1.5 times the base rate.
Frequently asked questions
Which total pay should I enter?
Use the pay for the same period and on the same basis, including the overtime portion. A comparison with regular pay alone is a different percentage.
Does changing the currency convert these amounts?
Choose one currency for every monetary input. The selector labels and formats amounts; it does not apply an exchange rate. Money displays use the selected currency’s standard minor units, including whole yen for JPY. Exact decimal arithmetic precedes rounding; halfway minor units round away from zero.
What assumptions should I keep with this result?
Total pay must be positive and include the overtime amount. Both values must be on the same gross or net basis and cover the same period; overtime pay cannot exceed the total of which it is a part. No overtime multiplier or legal entitlement is assumed. The arithmetic excludes tax, deductions, thresholds, time off in lieu and payroll rounding. A zero multiplier models no overtime pay; hours needed requires a positive resulting rate.