# Shift Differential Calculator

> Shift differential calculator: compute extra pay for night, weekend, or holiday shifts by percentage or flat rate per hour. Free, no signup, runs locally.

- **Canonical URL:** https://boringtoolskit.com/shift-differential-calculator/
- **Category:** Time & Work
- **Evidence level:** authored-methodology
- **Reviewed:** July 26, 2026
- **Last verified:** 2026-10-12
- **Privacy:** Inputs and results stay in this browser unless the page clearly labels an external request.

## How it works

Shift pay = hours x base rate + hours x base rate x differential % + overtime hours x rate x multiplier.

## Worked example

An 8-hour shift at $24/hr with a 10% differential: $192 base + $19.20 premium = $211.20 gross shift pay.

## Common questions

### Q1

A1

### Q2

A2

### Q3

A3

## Sources

- [Calculation methodology](/methodology/)
- [Quality evidence and verification standard](/quality-evidence/)

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