Overtime Shift Earnings Calculator
Calculate combined gross regular and overtime shift earnings for entered overtime pay.
How to use Overtime Shift Earnings Calculator
1. Choose Currency for all amounts, then enter Base Hourly Rate, Regular Hours, Overtime Hours, Overtime Multiplier in the labelled units. 2. Regular and overtime hours are separate, non-overlapping portions of the shift. The multiplier includes the base component of overtime pay. 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 Shift Earnings Calculator to compare your entered entered overtime pay assumptions with a stated formula and a reproducible example.
How the calculation works
Shift earnings = base rate × regular hours + base rate × overtime hours × entered multiplier. Regular and overtime hours are separate, non-overlapping portions of the shift. The multiplier includes the base component of overtime pay. 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; Base Hourly Rate = 20; Regular Hours = 8; Overtime Hours = 4; Overtime Multiplier = 1.5. Result: £280.00.
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
Should regular hours include overtime hours?
No. Enter the regular portion and overtime portion separately so the same hour is not paid twice in the model.
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?
Regular and overtime hours are separate, non-overlapping portions of the shift. The multiplier includes the base component of overtime pay. 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.