Weighted Overtime Calculator

What weighted overtime means

Weighted overtime is an estimate used when one workweek includes more than one hourly pay rate. Instead of calculating overtime from only one rate, the calculator first totals all straight-time earnings from the week. It then divides those earnings by total hours worked to estimate a weighted average regular rate. That regular-rate estimate is used for the additional overtime premium.

This approach is different from a simple calculator that assumes one hourly wage for the whole week. It is useful when a person works different jobs for the same employer, receives different rates for different tasks, picks up a higher-paid assignment, or has a lower training rate for part of the week. The estimate still depends on the applicable rule, agreement, and payroll policy.

When multiple rates can affect overtime

Multiple rates matter because overtime is often tied to the regular rate, not just the base rate shown on one line of a schedule. For U.S. federal overtime, many covered nonexempt employees must receive overtime pay at not less than one and one-half times the regular rate for hours worked over 40 in a workweek. Exemptions, special industries, state rules, contracts, and employer policies may change the result.

Use this calculator when the rates belong to the same workweek. If the rates are from different weeks, calculate each week separately. Weekly overtime estimates should not be averaged across two or more workweeks unless a specific applicable rule says otherwise.

Weighted overtime formula

The default multiplier is 1.5x, so the additional premium factor is 0.5x. The calculator uses the multiplier you enter, which makes it useful for comparing policies or contract terms that use a different premium.

Straight-time earnings are counted for all entered hours before the overtime premium is added. That is why this calculator shows overtime premium separately instead of multiplying all overtime hours by a single rate from the beginning.

Weighted regular rate = Total straight-time earnings / Total hours worked
Overtime premium = Weighted regular rate x (Overtime multiplier - 1) x Overtime hours
Estimated total pay = Straight-time earnings + Overtime premium

Worked example with two pay rates

Suppose a worker earns $22 for 32 hours and $30 for 12 hours in the same workweek. Straight-time earnings are $1,064 and total hours are 44. The weighted regular rate is about $24.18. If the overtime threshold is 40 hours, four hours are overtime. At a 1.5x overtime rule, the additional premium is one-half of the weighted regular rate for those four overtime hours.

Common mistakes with weighted overtime

One mistake is using only the highest rate. That can overstate the premium when most hours were worked at a lower rate. Another mistake is using only the lowest rate, which can understate the premium when a meaningful share of the week was paid at a higher rate. The weighted method keeps every entered rate in proportion to the hours worked at that rate.

A second mistake is treating the overtime premium as if straight-time pay has not already been counted. If all hours are already paid once at their straight-time rates, the overtime adjustment is commonly modeled as an additional premium on overtime hours. The calculator labels that premium separately so the estimate is easier to review.

Limits of this estimate

This calculator does not decide whether a specific payment must be included in the regular rate, whether an employee is covered and nonexempt, or whether a special rule applies. It also does not allocate overtime hours to a particular role. It estimates a workweek-level weighted regular rate from the rows entered.

If your week also includes bonuses, commissions, shift differentials, holiday premiums, rest-day premiums, or salary-based pay, review the more specific calculators on this site and official source links. For important payroll questions, compare the estimate with payroll records, written policies, and applicable law.