Overtime Pay Calculator: Hourly, OT, Double-Time
Calculate overtime pay and total earnings from hourly rates. Add overtime and double-time rules to estimate weekly and annual pay.
Last updated: February 7, 2026
What This Calculator Does
You earn $24 an hour. Your friend says they make $52,000 a year. Who makes more? This hourly to salary calculator answers that question instantly—and shows what happens when you add overtime pay to the equation.
Most people get the basic math right: $24/hour × 40 hours × 52 weeks = $49,920/year. But they miss the overtime piece. If you work 5 overtime hours weekly at 1.5× pay, that's an extra $9,360/year—pushing your total to $59,280. Suddenly you're making more than your salaried friend.
This calculator converts between hourly, weekly, monthly, and annual pay. Add overtime hours and double-time to see total compensation and your effective hourly rate (what you actually earn per hour when premium pay is factored in).
The Conversion Formulas
Basic Conversions:
Annual Salary = Hourly Rate × Hours/Week × Weeks/Year
Hourly Rate = Annual Salary ÷ (Hours/Week × Weeks/Year)
Monthly = Annual ÷ 12
Weekly = Annual ÷ Weeks/Year
With Overtime:
Weekly OT Pay = OT Hours × Hourly Rate × 1.5
Weekly DT Pay = DT Hours × Hourly Rate × 2.0
Total Annual = (Regular + OT + DT) × Weeks/Year
Effective Rate = Total Annual ÷ Total Hours Worked
Key Variables:
- • Standard week: 40 hours (FLSA threshold for overtime)
- • Overtime multiplier: 1.5× (time and a half) under federal law
- • Double-time: 2.0× (required in CA after 12 hours/day)
- • Weeks/year: 52 for salaried; adjust for unpaid time off
Two Workers, Two Calculations
Example 1: Warehouse Worker With Overtime
Derek earns $22/hour at a distribution center. He works 40 regular hours plus 8 overtime hours every week—mandatory during peak season.
Derek's Weekly Pay:
- Regular: 40 hours × $22 = $880
- Overtime: 8 hours × $22 × 1.5 = $264
- Weekly total: $1,144
Derek's Annual Numbers:
- Annual (52 weeks): $1,144 × 52 = $59,488
- Total hours worked: 48 × 52 = 2,496
- Effective hourly rate: $59,488 ÷ 2,496 = $23.84/hour
Without overtime, Derek would earn $45,760/year. The 8 weekly OT hours add $13,728 annually—a 30% boost. His effective rate of $23.84/hour reflects the blended value of regular and overtime pay.
Example 2: Comparing Job Offers
Maria has two offers: a $58,000/year salaried position (no overtime) or $26/hour with potential for 5 OT hours weekly.
Hourly Job With Overtime:
- Regular: 40 × $26 × 52 = $54,080
- Overtime: 5 × $26 × 1.5 × 52 = $10,140
- Total: $64,220/year
- Effective rate: $64,220 ÷ 2,340 hours = $27.44/hour
The hourly job pays $6,220 more annually—but Maria will work 260 extra hours. The salary job pays $27.88/hour for 40-hour weeks ($58,000 ÷ 2,080). She needs to decide if $6,220 is worth 260 hours of her time.
When to Use This (and When Not To)
Use It For:
- Comparing job offers: Convert everything to the same unit (annual or hourly) before deciding
- Budgeting: Know your monthly income for rent, loan applications, or savings goals
- Overtime planning: See how extra hours affect total pay and effective rate
- Freelance rate-setting: Figure out what hourly rate equals your target annual income
- Part-time income: Calculate annual earnings with fewer than 40 hours or 52 weeks
Don't Rely on It For:
- Take-home pay: This is gross pay—taxes reduce it by 20-40%
- Exempt employee overtime: Salaried exempt workers don't get OT pay regardless of hours
- Commission or bonus income: Variable pay needs to be calculated separately
- Benefits valuation: Health insurance, 401(k) match, PTO add 20-30% to compensation value
How We Calculate This
We use the federal FLSA standard: 40 hours is the regular work week, overtime kicks in at 1.5× for hours 41+, and double-time is 2.0× when enabled. You can adjust hours per week, weeks per year, and overtime/double-time hours to match your situation.
What we include: Gross regular pay, overtime pay (1.5× default), double-time pay (2.0×), and effective hourly rate calculation.
What we don't include: California daily overtime rules (you'd need to manually input daily OT hours), shift differentials, piece-rate calculations, or tax withholding. For net pay after taxes, use our Salary Take-Home Calculator.
Sources
- DOL Overtime Pay — Federal overtime regulations under FLSA
- DOL Fact Sheet #17A — Exempt vs. non-exempt employee classification
- California DIR — Daily overtime and double-time rules
Federal law requires 1.5× overtime after 40 hours/week. Some states (CA, CO, AK) have additional daily overtime rules. Always verify your state's requirements.
For Educational Purposes Only - Not Financial Advice
This calculator provides estimates for informational and educational purposes only. It does not constitute financial, tax, investment, or legal advice. Results are based on the information you provide and current tax laws, which may change. Always consult with a qualified CPA, tax professional, or financial advisor for advice specific to your personal situation. Tax rates and limits shown should be verified with official IRS.gov sources.