Time & Pay Calculators

Which time and pay calculator do you need?

Tracking your hours. If you work shifts, the Work Hours Calculator totals a full week including lunch breaks and flags overtime pay. For a simple daily in-and-out record, the Time Card Calculator is faster. Need the length of a single shift — say 9:00 AM to 5:30 PM with a 30-minute break? The Hours Between Two Times Calculator gives it in one step, and it handles overnight shifts that cross midnight.

Understanding your pay. Once you know your hours, the Overtime Calculator applies time-and-a-half (and double time) to estimate extra earnings. The Salary to Hourly Calculator converts in both directions using the standard 2,080-hour work year, which is handy when comparing a job offer against your current hourly rate. The Paycheck Calculator goes further, estimating take-home pay per paycheck after federal, state, and FICA deductions across weekly, biweekly, semimonthly, and monthly schedules. And if you just got a raise, the Pay Raise Calculator shows what a percent or dollar bump means per hour, per paycheck, and per year.

Freelancers and contractors. Pricing work starts with the Freelance Hourly Rate Calculator, which divides your target income plus expenses by your realistic billable hours. Then the W-2 vs 1099 Calculator compares employee take-home against contractor take-home, including the full 15.3% self-employment tax, so you can see the true cost of going independent.

Time formats. Timesheets and payroll systems often want decimal hours (7.5) instead of clock time (7:30) — the Decimal Hours Converter translates both ways. The Military Time Converter switches between 12-hour and 24-hour notation and includes a full reference chart.

Who uses these calculators?

Hourly employees verifying that a paycheck matches the hours they actually worked. Shift workers — especially overnight shifts — making sure nothing gets lost crossing midnight. Managers double-checking payroll totals before approving them. Freelancers and contractors pricing their work, comparing a contract offer against a salaried job, or estimating quarterly taxes. HR and payroll staff sanity-checking figures quickly without opening the full payroll system.

The core formulas behind these tools

Every calculator on this page is built on a handful of transparent formulas. Overtime pay equals your regular hourly rate times 1.5, times the number of overtime hours — so 8 overtime hours at $20 an hour is $20 × 1.5 × 8 = $240 on top of regular pay. Salary converts to hourly by dividing by 2,080, the standard full-time year of 40 hours times 52 weeks. Gross weekly pay is simply hourly rate times hours worked, plus the overtime premium for hours beyond 40. Decimal hours come from dividing minutes by 60, which is why 7 hours 30 minutes is 7.5 hours — the format most payroll systems expect. Military time adds 12 to PM hours (2:30 PM becomes 14:30), with the two exceptions of 12:00 AM, which is 00:00, and 12:00 PM, which stays 12:00. For contractor math, the headline number is the self-employment tax: 15.3% of 92.35% of net earnings, roughly double the 7.65% FICA an employee pays, because the contractor covers both the employer and employee portions. Knowing these formulas lets you sanity-check any result in seconds.

Tips for accurate results

Enter actual clock times rather than rounded guesses — fifteen minutes a day adds up to real money over a year. When comparing pay scenarios, use the same assumptions everywhere (same hours per week, same weeks per year) so the totals are truly comparable. Remember that paycheck and tax tools give estimates: your real withholding depends on your W-4, your state, and your benefits, so confirm anything official with your employer or a tax professional. And as with any calculator, results are only as good as the inputs — a quick second look at what you typed catches most errors.