Blended Overtime Rate Calculator
Built & reviewed by Nandu Kannan · Overtime rules cited to primary statutes
Worked two or more pay rates in one week? Overtime isn't based on either rate alone — the FLSA uses a weighted average. Enter each rate and its hours for the correct blended overtime pay.
Enter each pay rate you worked this week and the hours at that rate.
| Job / rate | Hourly rate ($) | Hours |
|---|---|---|
| Rate 1 | ||
| Rate 2 | ||
| Rate 3 |
How the blended (weighted-average) rate works
If you work more than one hourly rate in a single workweek — say two roles, or a shift differential — federal law bases overtime on your regular rate, a weighted average of everything you earned:
Regular rate = total straight-time pay ÷ total hours
OT premium = hours over 40 × (regular rate × 0.5)
Total = straight-time pay + OT premium
Paying overtime at just the higher rate — or whatever rate you happened to be working in the 41st hour — is a common and costly payroll mistake. This tool applies the method the U.S. Department of Labor requires.
Frequently asked questions
What is a blended overtime rate?
When you work two or more different pay rates in the same workweek, the FLSA says overtime is based on the "regular rate" — a weighted average of all your pay. You divide total straight-time earnings by total hours worked, then overtime is paid at 1.5× that blended rate (or, since straight time is already paid, an extra 0.5× of it for each hour over 40).
How is the blended rate calculated?
Add up all your straight-time pay (each rate × its hours). Divide by total hours worked to get the blended regular rate. Multiply hours over 40 by half the blended rate to get the overtime premium, then add it to your straight-time pay. Example: 30 hrs at $20 ($600) + 20 hrs at $15 ($300) = $900 over 50 hours → blended rate $18/hr; 10 OT hours × $9 (half) = $90 premium → $990 total.
Why not just use the higher rate for overtime?
Because the FLSA requires the weighted average, not the highest (or the rate you happened to be working in the overtime hour). Using a single rate is one of the most common payroll overtime errors. This calculator applies the legally correct weighted-average method.
Does the blended rate apply to tips or bonuses?
Non-discretionary bonuses and certain other pay must be included in the regular rate too, which can change the result. This tool handles multiple hourly rates; for bonuses, commissions or tipped wages, confirm with a payroll professional.
General information based on the FLSA "regular rate" rules (29 CFR §778.115). Not legal or payroll advice.
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Overtime Calculator · Time and a Half · Shift Differential · Time Card Calculator