Work & Business

Overtime Blended Rate Cost Calculator

When an employee works at multiple rates, overtime may require a weighted regular rate rather than simply multiplying the last job rate. This calculator blends entered regular-rate earnings across two work types, applies an overtime multiplier and premium, then adds employer burden. It is an arithmetic scenario, not a legal determination of the required overtime method.

Planning estimate only. Check measurements and real-world constraints before buying materials or making a commitment.

Last Updated: July 9, 2026

Calculate your scenario

Change any input. Results update immediately.

Hours at rate AStraight-time hours for the first work type.hoursHourly rate ABase rate for the first work type.$/hourHours at rate BHours for the second work type, including overtime allocation in this scenario.hoursHourly rate BBase rate for the second work type.$/hourOvertime hoursHours eligible for overtime premium.hoursOvertime multiplierUse the multiplier required for the scenario.×Employer payroll burdenSelected payroll taxes and benefit burden.%

Your results

Weighted regular rate

$25.91/hour

Straight-time earnings divided by entered hours.

Gross pay with overtime premium

$1,191.82

Straight earnings plus incremental overtime premium.

Loaded employer cost

$1,334.84

Gross pay plus entered payroll burden.

How the calculation works

The calculator applies this relationship to the inputs above. Keep every measurement in the unit shown.

weighted regular rate = total straight-time earnings ÷ total straight-time hours

Hours at rate A30 hours

Hourly rate A24 $/hour

Hours at rate B14 hours

Hourly rate B30 $/hour

Overtime hours4 hours

Overtime multiplier1.5 ×

Employer payroll burden12 %

Worked example

Use this example to check the calculator by hand before relying on a result.

Total straight earnings

Both work rates enter the blend.

30 × $24 + 14 × $30 = $1,140

Find weighted rate

This scenario averages by worked hours.

$1,140 ÷ 44 = $25.91/hour

Add half-time premium

The straight portion is already in base earnings.

4 × $25.91 × 0.5 = $51.82

Assumptions behind the result

• Entered hours and rates belong in one blend.
• Straight earnings already pay every hour once.
• Overtime premium uses the entered method.
• Bonuses and differentials are excluded.
• Current legal requirements are checked independently.

Mistakes that change the answer

• Paying overtime only on the lowest rate.
• Adding a full 1.5× amount after straight time is already included.
• Excluding includable bonuses from the regular rate.

Questions about overtime blended rate cost calculator

Is weighted-average overtime always required?

No. The correct method depends on jurisdiction, agreement, workweek, rate arrangement, and includable compensation.

Why add only the extra multiplier portion?

The straight-time calculation already pays each overtime hour once, so a 1.5× total rate adds another 0.5× premium.

Does employer burden apply to all overtime?

Some costs do and others have caps or different treatment. Enter a blended planning percentage or model components separately.

What to calculate next

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Calculator methods and editorial structure reviewed July 11, 2026. Results are estimates; verify regulated rates, eligibility rules, and professional decisions with the cited primary source.