Overtime Pay: Time-and-a-Half Math

Time-and-a-half overtime multiplies your regular hourly rate by 1.5 for qualifying OT hours. Weekly gross is regular earnings plus OT earnings.

Illustrative wage math only — not legal advice. OT rules, thresholds, and exemptions vary by country, state, and contract.

Core formulas

regular pay = rate × regular hours
OT rate     = rate × 1.5
OT pay      = OT rate × OT hours
gross       = regular pay + OT pay

Some workplaces use daily OT, double-time after a second threshold, or blended rates — always check your policy.

Worked example

$20/hour, 40 regular hours, 8 OT hours at 1.5×:

Component	Math	Amount
Regular	20 × 40	$800
OT rate	20 × 1.5	$30/hr
OT pay	30 × 8	$240
Gross	800 + 240	$1,040

Versus 48 hours all at straight time ($960), OT adds $80 in this illustration.

Common variants

Variant	Typical idea
Time-and-a-half	1.5× after weekly/daily threshold
Double-time	2× after a higher threshold or holiday
Salaried non-exempt	May use a regular-rate calculation that includes non-discretionary bonuses

Linking to annual pay

OT is uneven week to week. For base-rate annualization without OT, use TryCalculatingNow Hourly to Salary.

Privacy

Wage inputs stay in your browser.

Use TryCalculatingNow Overtime Pay Calculator

TryCalculatingNow Overtime Pay Calculator combines regular and OT hours so you can sanity-check a timesheet total.

FAQ

Is OT always after 40 hours?

In many U.S. FLSA-style contexts, weekly 40 is the default — but not universal worldwide.

Do bonuses affect OT rate?

Sometimes the “regular rate” must include certain pay types. That is a compliance question, not a blog formula.

Is salaried staff eligible for OT?

Depends on exemption status and local law.

Can I model double-time?

Treat double-time hours at 2 × rate as a separate line, then sum.