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Shift differential calculator

Estimate night, evening or weekend shift pay. Enter a percentage or flat hourly premium, then compare your adjusted rate, overtime rate and gross earnings.

Shift details

Calculate differential pay

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Use the overtime method shown by your pay policy or payroll statement.

Gross pay for entered hours$968.00$168.00 more than base pay
Shift rate$22.00/hr
Overtime rate$33.00/hr
Differential pay$80.00
Overtime premium$88.00

40 hours at the selected shift rate and overtime method.

Percentage differential formula

Multiply the base rate by the differential percentage to find the hourly premium.

Base rate × differential % = premium per hour

Example: a 10% differential on $20 per hour adds $2, making the shift rate $22 per hour.

Flat differential formula

Add the fixed premium directly to the base hourly rate for each eligible shift hour.

Base rate + flat premium = shift rate

Example: $20 per hour plus a $2 night premium produces the same $22 shift rate.

Shift differential questions

What is shift differential pay?

It is extra pay for working designated hours such as nights, evenings or weekends. An employer may offer a percentage of base pay or a fixed amount for each eligible hour.

How do I calculate a 10% night differential?

Multiply the base hourly rate by 0.10, then add the result to the base rate. At $20 per hour, the premium is $2 and the adjusted night rate is $22.

Does shift differential count toward overtime?

Sometimes. Payroll rules, contracts and local laws differ. The calculator provides two common estimate methods; use the method required by your workplace and verify the result against official payroll guidance.

Does this calculate take-home pay?

No. Results are gross estimates before taxes, benefits, deductions and payroll rounding. This tool is for comparison and planning, not legal, payroll or tax advice.