Work Hours · Overtime · Pay · Paycheck
Work out your hours, overtime, and take-home pay
TinyTools is a focused set of free calculators for one thing — turning work hours into pay. Fast, accurate, mobile-first, and calculated entirely in your browser.
- No sign-up
- Nothing you type leaves your device
- US · Canada · UK · Australia
Work Hours
Turn clock times and shifts into hours worked.
- Time Card Calculator A full weekly timesheet: daily start/end times, breaks, overnight shifts, overtime, and gross pay.
- Hours Worked Calculator Hours between a start and end time minus breaks, plus hours per week, month and year from a schedule.
- Time Clock Calculator Clock in/out punches to decimal payroll hours.
- Time Calculator Pure time arithmetic: add and subtract hours, minutes, and seconds.
- Decimal Hours Calculator Minutes ↔ decimal hours, with a conversion chart.
Overtime
Split regular and overtime hours and pay.
Pay & Salary
Convert between hourly, weekly, and annual pay.
Paycheck
Estimate withholding and take-home pay (US, 2026).
Guides: the rules behind the numbers
Short, sourced explanations of how hours, overtime, and paychecks are worked out.
- How to Calculate Overtime Pay The formula, the regular-rate rules, and thresholds by country.
- How to Read a Pay Stub Gross, net, YTD, pre-tax vs post-tax, and how to spot an error.
- Gross Pay vs Take-Home Pay Every paycheck deduction explained, and how to read a pay stub.
- Salary vs Hourly Pay Overtime eligibility, benefits, stability, and comparing offers.
- How to Calculate Hours Worked The manual method, decimal conversion, overnight shifts, and payroll rounding.
- How Many Work Hours Are in a Year? The 2,080-hour standard, why years differ, and PTO-adjusted hours.
New and updated
- California Overtime Rules: Daily, Weekly and 7th-Day — Daily and weekly overtime, double time, the 7th-day rule, and a worked week.
- Ontario Overtime Rules: The 44-Hour Week Explained — The 44-hour threshold, averaging agreements, and banked time off.
- UK Overtime Pay Rules: What Employers Must Pay — Contractual overtime, the minimum-wage check, the 48-hour week, holiday pay.
- How to Calculate Overtime With Two Pay Rates — The weighted-average regular rate, a worked example, and the agreement option.
- What Is Shift Differential Pay? — Flat and percentage differentials, and how they change overtime pay.
- How to Calculate Hours for Overnight Shifts — The midnight method, workweek and workday splits, and daylight saving nights.
- Are Breaks Paid? Lunch and Rest Break Rules — Paid vs unpaid breaks by country, California penalties, and auto-deducted lunches.
- Split Shift Pay: Hours and California's Premium — Counting hours, what qualifies, and California's minimum-wage premium.
- 27 Pay Periods: Years With an Extra Payday — Which years have 27 paydays, and what it means for your salary.
- How to Calculate PTO Accrual — Per-hour and per-period accrual, rate tables, caps, and legal minimums.
What you can work out here
TinyTools covers one chain of everyday questions: hours worked → time card → overtime → pay → salary → paycheck. Start from clock times and a calculator turns them into decimal hours; feed those into the overtime split; apply your rate to get gross pay; convert between hourly and annual; and estimate the tax withholding that separates gross from take-home.
- Work hours. The Time Card, Hours Worked, Time Clock, Time, and Decimal Hours calculators add up shifts, subtract breaks, handle overnight hours, and convert minutes to the decimal hours payroll needs.
- Overtime. The Overtime Calculator applies time-and-a-half (and daily double-time where it exists) using US federal, California, Ontario, UK, or Australian rules, or a threshold and multiplier you set.
- Pay and salary. Hourly Pay projects a rate across a week, month, and year; Salary to Hourly converts in both directions with PTO adjustments.
- Paycheck. The Paycheck Calculator works from one paycheck, an hourly rate, or an annual salary and estimates US federal income tax, Social Security, Medicare, and state withholding for 2026.
How the calculators work
A chatbot can answer "what's time and a half on $22?" But a real timesheet — seven days, lunch breaks, an overnight shift, an overtime threshold that depends on where you work — is a structured problem. Each calculator here keeps the inputs organised, shows the formula it used, and lets you copy, print, or share the result.
Everything runs as client-side JavaScript in your browser. The hours, rates, salaries, and tax settings you enter are never sent to a server or stored — see the Privacy Policy. The calculation logic is a single tested engine shared across every tool, so the same inputs always give the same answer, and the tax tables are versioned to a specific year.
Accuracy and scope
Hours and overtime math is exact. Pay and tax figures are estimates of payroll withholding for United States, Canada, United Kingdom, Australia, useful for planning and for checking a pay stub — not a substitute for your employer's payroll or professional advice. Tax coverage is US federal plus FICA and a set of states (California, New York, Illinois, Pennsylvania, and the nine no-income-tax states) for 2026; where a jurisdiction is not modelled the tool says so rather than guessing. Full details are on the Methodology & Sources page, and the limits are set out in the Disclaimer.
New to any of this? The guides explain the rules behind the numbers — how overtime thresholds work, what comes out of a paycheck, how to read a pay stub, and the difference between biweekly and semimonthly pay.