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Twelve-Hour Shift Pay with Two Entered Rates

Calculate a 12-hour shift using regular and overtime rates you supply, with the captured fixed weekly, monthly and yearly schedules.

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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Use the result with context

Results are estimates for planning and education. Confirm rates, taxes, fees, and legal requirements with the relevant institution or a qualified professional before making a financial decision.

Formula and method

At $25 per hour for 8 regular hours and $37.50 per hour for the remaining 4 hours, a 12-hour shift pays $350 before deductions.

Shift pay = regular hours × regular rate + (12 − regular hours) × second rate

Worked example

Enter these known values and leave the other values blank.

Hourly wage
25 USD
Entered overtime / second hourly rate
37.5 USD
Regular-rate hours within the 12-hour shift
8 hours
Blended pay per hour
29.17 USD
Pay per day
350 USD
Pay for 5 identical shifts
1750 USD
Pay for 22 identical shifts
7700 USD
Pay for 260 identical shifts
91000 USD

Assumptions and limitations

  • Every shift is exactly 12 paid hours, split between the two entered rates. Unpaid breaks, premiums and additional pay categories are excluded.
  • Regular hours must lie between zero and 12. Enter both rates, including zero for an unused or unpaid portion.
  • The retained weekly, monthly and yearly figures use 5, 22 and 260 shifts independently. Twelve displayed 22-shift months equal 264 shifts, so they do not reconcile to the separate 260-shift year.
  • Rates and hours are supplied by you. This calculator does not determine overtime eligibility, statutory multipliers, tax or take-home pay.

Common questions

Does this choose the legally required overtime rate?

No. Enter the applicable rates and the appropriate split of paid hours for your situation. This tool performs the pay arithmetic only.

References

The calculation equations, inverse formulas, units, and input rules were imported from this source. Bookify provides the interface and equation solver.

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