Overtime Calculator

Free overtime calculator. Calculate overtime pay at 1.5× or 2× rates, weekly and annual OT earnings, effective hourly rate, and OT scenarios.

/hr
CA: after 12 hrs/day or 7th consecutive day
Total Weekly Pay
$1,375.00
50 total hours
OT Rate
$37.50/hr
1.5× base rate
Weekly OT Earnings
$375.00
27.3% of weekly pay
Effective Hourly Rate
$27.50/hr
Total pay ÷ total hours
Annual Total
$68,750.00
50 working weeks
Annual OT Premium
$6,250.00
Extra earned from OT multiplier

Weekly Pay Composition

Regular $1,000.00
OT $375.00

Overtime Hours Scenarios

OT HoursWeekly PayAnnual PayEffective Rate
0$1,000.00$50,000.00$25.00/hr
5$1,187.50$59,375.00$26.39/hr
10$1,375.00$68,750.00$27.50/hr
15$1,562.50$78,125.00$28.41/hr
20$1,750.00$87,500.00$29.17/hr
25$1,937.50$96,875.00$29.81/hr
30$2,125.00$106,250.00$30.36/hr

Base Rate Impact on OT Earnings

Base RateOT RateWeekly OTAnnual OT
$12.00/hr$18.00/hr$180.00$9,000.00
$15.00/hr$22.50/hr$225.00$11,250.00
$18.00/hr$27.00/hr$270.00$13,500.00
$20.00/hr$30.00/hr$300.00$15,000.00
$25.00/hr$37.50/hr$375.00$18,750.00
$30.00/hr$45.00/hr$450.00$22,500.00
$35.00/hr$52.50/hr$525.00$26,250.00
$40.00/hr$60.00/hr$600.00$30,000.00
Planning notes, formulas, and examples

About the Overtime Calculator

The Overtime Calculator computes your overtime pay at time-and-a-half (1.5×) or double-time (2×) rates. Enter your hourly rate, regular hours, and overtime hours to see total weekly pay, annual overtime earnings, the OT premium over straight time, and your effective blended hourly rate.

Under the Fair Labor Standards Act (FLSA), non-exempt employees must be paid at least 1.5× their regular rate for hours worked beyond 40 in a workweek. Some states like California require overtime after 8 hours in a single day and double-time after 12 hours or on the 7th consecutive day worked.

The overtime scenarios table shows how different OT hour levels change your weekly and annual pay, while the rate impact table reveals how your base rate amplifies through overtime. Use presets for common scenarios including California's double-time rules.

When This Page Helps

Overtime can significantly boost earnings, but the math is often confusing. This calculator shows exactly how much extra you earn and how the effective hourly rate changes, so you can compare extra hours against the time cost.

How to Use the Inputs

  1. Enter your regular hourly rate.
  2. Enter regular hours per week (typically 40).
  3. Enter overtime hours per week.
  4. Add double-time hours if applicable (California).
  5. Select the OT multiplier (usually 1.5×).
  6. Set working weeks per year.
  7. Review OT earnings and scenario tables.
Formula used
OT Rate = Hourly Rate × OT Multiplier Weekly Pay = (Regular Hours × Rate) + (OT Hours × OT Rate) + (DT Hours × 2 × Rate) Effective Rate = Total Weekly Pay ÷ Total Hours Annual OT Premium = (OT Rate − Base Rate) × OT Hours × Weeks

Example Calculation

Result: Weekly pay: $1,375, OT premium: $6,250/year

Regular: $1,000 (40×$25). OT: $375 (10×$37.50). Total: $1,375/week. Annual: $68,750. OT premium over straight time: $125/week × 50 weeks = $6,250.

Tips & Best Practices

  • OT at 1.5× means 10 extra hours earn as much as 15 regular hours.
  • The "effective rate" blends regular and OT — useful for comparing total compensation.
  • California has daily OT (after 8 hrs) — not just weekly like federal.
  • Overtime is normal income for tax — don't avoid it thinking it's taxed extra.
  • Track OT hours carefully — employers are required to maintain accurate records.

Federal vs State Overtime Laws

The FLSA requires overtime after 40 hours per workweek. However, states like California, Alaska, Colorado, and Nevada have daily overtime trigger (typically after 8 hours). California's rules are the most complex: 1.5× after 8 hours/day, 2× after 12 hours/day, and 2× for all hours on the 7th consecutive workday.

The OT Premium Explained

The "overtime premium" is the extra payment above what straight time would pay. If you earn $25/hr and work 10 OT hours at $37.50, you earn $375. At straight time, those same hours would pay $250. The premium is $125 — pure extra compensation for the inconvenience of extended work.

When Overtime Stops Being Worth It

After taxes, the real OT premium shrinks. A higher gross rate does not always mean a proportional improvement in take-home pay once deductions and fatigue are included. The effective rate helps quantify whether extra hours are actually worthwhile.

Sources & Methodology

Last updated:

Methodology

This worksheet estimates gross overtime pay using a base hourly rate, hours worked, and the standard overtime premium. It is a pay-calculation aid, not a payroll or legal opinion.

The calculation assumes the selected overtime rule applies to the worker’s situation and does not model state-specific exceptions beyond the page inputs.

Sources

  • Wage and Hour Division overtime rules (U.S. Department of Labor) — Overtime rule and premium-pay context.
  • Fair Labor Standards Act (U.S. Department of Labor) — Overtime and hours-worked framework.
  • BLS occupational pay data (U.S. Bureau of Labor Statistics) — Hourly-wage context.

Frequently Asked Questions

  • Under FLSA, non-exempt employees earn overtime at 1.5× for hours over 40 in a workweek. Some states have daily overtime (after 8 hours/day). Salaried exempt employees generally do not qualify.