Blended Overtime Rate Calculator (Weighted Average)
Calculate weighted average overtime pay for employees working at two different pay rates in the same workweek under FLSA 29 C.F.R. § 778.115.
Multi-Rate Pay Inputs
- Total Hours Worked 45.00 hrs
- Role 1 Straight Pay (30.00h @ $18.00) $540.00
- Role 2 Straight Pay (15.00h @ $24.00) $360.00
- Total Straight Time Earnings $900.00
- Overtime Hours (>40h) 5.00 hrs
- Overtime Premium (5.00h @ $10.00) +$50.00
- Total Weekly Gross Pay $950.00
Important note on the blended overtime rate calculator: The calculator on this page is provided through Codexa Tools and is designed to provide general guidance and estimates based on official 2026 IRS Publication 15-T and state revenue withholding guidelines. It should not be relied upon to calculate exact taxes, payroll, or legal financial obligations. These calculators are not intended to provide tax, legal, or accounting advice and do not represent a substitute for certified payroll processing. You should refer to a professional advisor, CPA, or licensed accountant regarding any specific requirements, local tax ordinances, or financial concerns.
Step-by-Step Weighted Average Overtime Formula
Under the US Fair Labor Standards Act (29 C.F.R. § 778.115), employers must calculate the regular rate using the weighted average when an employee works at two different rates in the same week:
Step 2: Regular Blended Rate = $900.00 ÷ 45.00 total hours = $20.00 / hr
Step 3: Half-Time Overtime Premium = $20.00 × 0.5 = $10.00 / hr
Step 4: Overtime Premium Pay = 5.00 OT hrs × $10.00 = $50.00
Step 5: Total Weekly Compensation = $900.00 + $50.00 = $950.00
Why 0.5× is Multiplied Instead of 1.5×
A frequent point of confusion among multi-rate employees is why the overtime hours are multiplied by 0.5 instead of 1.5.
Because the straight-time earnings (1.0×) for all hours worked have already been paid in Step 1, paying 1.5× again would cause double-payment of the base rate. Adding the 0.5× overtime premium completes the legally required 1.5× total compensation for all hours worked over 40.
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Frequently Asked Questions
A blended overtime rate (or weighted average overtime rate) is used when an employee works two or more distinct jobs at different pay rates for the same employer during a single workweek. The regular rate is calculated by dividing total straight-time earnings by total hours worked.
Step 1: Multiply hours worked by the respective pay rate for each job and add them to get Total Straight Earnings. Step 2: Divide Total Straight Earnings by Total Hours to get the Regular Blended Rate. Step 3: Multiply hours over 40 by 50% (0.5x) of the blended rate to find the overtime premium.
An employer can agree in advance to pay overtime based on the rate of the specific job performed during the overtime hours, provided there was mutual agreement prior to the work being done, as permitted under FLSA § 7(g)(2).