Salary & Compensation

Work Hours & Overtime Calculator

Calculate regular hours, overtime pay and estimated weekly, monthly and annual pay.

Tool update date: 2026-09-27

Hours and overtime

Regular pay is based on working days × daily hours. Overtime uses the hourly rate and multiplier you enter.

Tool guide

Make working time and overtime pay easier to inspect

Hourly compensation becomes difficult to compare when regular hours and overtime are mixed together. Work Hours & Overtime Calculator separates the normal working pattern from additional hours and applies the overtime multiplier you enter. The goal is a transparent arithmetic result that you can reproduce, not a labor-law calculator. You can see how the number changes when daily hours, overtime hours or the multiplier changes.

Enter working days per week and daily hours to establish regular weekly hours. Then enter overtime hours and the multiplier used by your employer or planning model. Add the hourly pay and currency. The tool calculates regular and overtime components and translates the weekly result into monthly and annual equivalents. It does not assume that one country’s overtime rules apply everywhere.

Use the multiplier from the actual agreement

A multiplier such as 1.5 means the overtime hour is valued at one and a half times the base hourly rate for the calculation. It does not tell you whether the employer is legally required to pay that multiplier. If your contract, collective agreement or local law uses a different rule, enter the rule that actually applies to the scenario you are modelling and verify the legal position separately.

Why regular hours are explicit

The tool calculates regular weekly hours as working days multiplied by daily hours. This avoids maintaining two competing definitions of regular hours. It also makes the result easier to audit: if your schedule changes from five eight-hour days to four ten-hour days, the weekly regular hours remain visible and the overtime scenario can be adjusted independently.

Good uses

Use the calculator when comparing shift patterns, checking an overtime estimate, preparing a compensation discussion or translating an hourly rate into weekly and annual planning figures. Pair it with Job Offer Comparison when overtime is a meaningful part of an employment package.

Limitations

Labor laws can define overtime thresholds, rest periods, holiday pay and exemptions in ways this calculator does not model. Monthly and annual equivalents are arithmetic planning values. Verify the contract, employer policy and applicable law when the result has legal or payroll consequences.

Quick review before using the figure for payroll

Confirm how your employer defines normal hours, overtime hours and the applicable multiplier. Check whether overtime is voluntary, capped, averaged or treated differently on weekends and holidays. Use the calculator to understand the arithmetic, then use the governing policy or law for entitlement.

How it works

Enter working hours, overtime and an adjustable multiplier.

Methodology at a glance

Regular weekly hours are working days × daily hours. Overtime pay is overtime hours × hourly pay × the supplied multiplier. Weekly, monthly and annual figures are derived arithmetically.

How the model is calculated

Regular weekly hours are derived from working days multiplied by daily hours. Overtime is entered separately and multiplied by the hourly pay rate and the user-supplied overtime multiplier. The engine then derives weekly pay and planning equivalents for longer periods using straightforward arithmetic. The multiplier is treated as an assumption, not a legal conclusion. The calculator does not determine statutory overtime thresholds, holiday rates, rest-period rules, exemptions or collective-agreement provisions. Input validation prevents negative or impossible working-time values and keeps the displayed result finite. The methodology is useful when a user already knows the rate and wants to inspect the arithmetic behind an overtime scenario.

Important notes

Review inputs and assumptions before using a result for a real decision.

Disclaimer

This is an arithmetic planning tool. It does not determine overtime entitlement or local labor-law compliance.

Sources and reference notes

No external labor-law source. The tool performs arithmetic using the hours, rate and multiplier entered by the user.

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