Overtime Calculator

Labor Standards & Overtime Pay Regulations

The Fair Labor Standards Act (FLSA) establishes federal minimum wage, overtime pay, recordkeeping, and youth employment standards for private sector and government workers in the United States.

Core Overtime Equations

• Regular Pay: Regular Pay = Hourly Rate × Regular Hours (up to 40)

• Overtime Hourly Rate: OT Rate = Hourly Rate × Multiplier (1.5, 2.0, etc.)

• Overtime Pay: OT Pay = OT Rate × Overtime Hours

• Total Gross Pay: Gross Pay = Regular Pay + Overtime Pay

State-Specific Overtime Rules (e.g. California)

• Daily Overtime: California law mandates 1.5x overtime for hours worked beyond 8 hours in a single workday.

• Double Time (2.0x): Mandatory in California for hours worked beyond 12 hours in a single workday or beyond 8 hours on the 7th consecutive day of work.

Overtime Calculation for Blended Pay Rates

When non-exempt employees perform two or more distinct jobs at different pay rates during the same workweek, employers must calculate a weighted average regular rate before computing time-and-a-half overtime multipliers.

How to Use This Calculator

Enter your Base Hourly Pay Rate (e.g. 25.00 in /hr), Standard Regular Hours Worked (e.g. 40 in hours), Overtime Hours Worked (e.g. 10 in hours), and Overtime Multiplier Rate — choose from 1.5x (Time and a Half), 2.0x (Double Time), 2.5x (Double Time and a Half). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Overtime Calculator

Input variables:

regularHourlyRateUsd — Base Hourly Pay Rate

regularHoursWorked — Standard Regular Hours Worked

overtimeHoursWorked — Overtime Hours Worked

overtimeMultiplier — Overtime Multiplier Rate

Computed outputs:

regularPayTotalUsd — Total Regular Pay

overtimeHourlyRateUsd — Effective Overtime Hourly Rate

overtimePayTotalUsd — Total Overtime Pay

grossPayTotalUsd — Total Gross Pay

Mathematical relationships extracted from calculation logic:

regPay = rate * regHrs

otRate = rate * mult

otPay = otRate * otHrs

grossPay = regPay + otPay

Standard: US DOL / FLSA federal employment standards

Worked Example

Calculating weekly gross pay for an employee earning 25.00/hr who works 50 total hours: Yields 1,000.00 regular pay, 37.50/hr overtime rate, 375.00 overtime pay, and 1,375.00 total gross earnings.

Understanding Your Result

Evaluate your result in the context of your specific use case and relevant industry standards or reference values. A single calculated result is a starting point — test two to three scenarios to understand how sensitive the outcome is to your key input assumptions. For high-stakes decisions, verify your result against a secondary source or subject-matter expert before acting.