Calculators

Weekly timesheetA full week with breaks, overtime, saving and export. Time cardOne day, clocked in and out up to three times. Hours between timesDuration between two clock times, including overnight. Overtime paySplit hours into regular, overtime and double time. Hourly ↔ salaryConvert an hourly rate to annual pay and back. PTO accrualTurn an accrual rate into days and a year-end balance. Add & subtract timeAdd durations together or shift a clock time. Military timeConvert 12-hour and 24-hour time, with the full chart. Minutes → decimalThe 0–59 minute payroll conversion chart. Blank templatesWeekly, biweekly and monthly sheets to print or export.

Guides

All guidesEvery reference article in one place. Overtime laws by stateFederal rules plus the states that add daily or lower thresholds. The regular rate of payWhy overtime is rarely just 1.5× your hourly wage. Timesheet rounding & the 7-minute ruleWhen rounding punches is lawful and when it is not. Meal & rest break lawsWhich breaks are paid, and which states require them. Pay periods explainedWeekly, biweekly, semi-monthly and the 27-paycheck year. Work hours in a yearWhere 2,080 comes from, and the months that break it. The overtime tax deductionHow the qualified overtime deduction actually works. How to fill out a timesheetA correct sheet, step by step, with the common mistakes. Timesheet & payroll glossarySixty terms you will meet on a pay stub or timesheet.

Minutes to decimal hours

Payroll wants 7.75, your watch says 7 hours 45 minutes. Convert either way below, or use the full 0–59 minute chart.

Convert — change any field

e.g. 90
e.g. 1.5
e.g. 01:30
Convert a whole shift →
Decimal hours
1.50decimal hours
Hours & minutes
1h 30mhours and minutes
Minutes
90total minutes

The conversion, in one line

decimal hours = minutes ÷ 60   ·   minutes = decimal hours × 60

That is the whole rule. 45 minutes ÷ 60 = 0.75 hours; 0.4 hours × 60 = 24 minutes. Everything below is that same division, pre-computed so you do not have to reach for a calculator mid-timesheet.

Minutes to decimal hours chart

Every value from 0 to 59 minutes, rounded to two decimal places — the precision most payroll systems accept.

MinDec MinDec MinDec MinDec
00.00150.25300.50450.75
10.02160.27310.52460.77
20.03170.28320.53470.78
30.05180.30330.55480.80
40.07190.32340.57490.82
50.08200.33350.58500.83
60.10210.35360.60510.85
70.12220.37370.62520.87
80.13230.38380.63530.88
90.15240.40390.65540.90
100.17250.42400.67550.92
110.18260.43410.68560.93
120.20270.45420.70570.95
130.22280.47430.72580.97
140.23290.48440.73590.98

The values worth memorising

MinutesDecimalFraction of an hour
60.10one tenth
100.17one sixth
150.25quarter hour
200.33one third
300.50half hour
400.67two thirds
450.75three quarters
500.83five sixths
601.00a full hour

Why payroll wants decimals

Pay is hours multiplied by a rate, and you cannot multiply 7:45 by $18.50 without converting first. Decimal hours make the sum trivial: 7.75 × $18.50 = $143.38. That is why almost every payroll system, invoice template and spreadsheet asks for hours in decimal form.

It is also why the mistake below is so expensive. Writing 7 hours 45 minutes as 7.45 instead of 7.75 loses 18 minutes of pay every single time.

7.45 ≠ 7h 45m. Minutes are sixtieths of an hour, not hundredths. 7.45 hours is 7 hours and 27 minutes. The only minute values where the decimal looks like the minutes are 0 and 60.

Tenths of an hour

Law firms, agencies and many payroll systems bill in tenths of an hour — six-minute blocks. Each tenth is exactly 0.1 hours, which makes the mapping unusually clean:

Tenth0.10.20.30.40.50.60.70.80.91.0
Minutes6121824303642485460

If your employer rounds to tenths, the time card calculator and the weekly timesheet both have a 6-minute rounding option that matches.

Converting a full shift

To convert a whole day, add up the minutes first and divide once at the end — dividing each shift separately and adding the decimals invites rounding drift. For 8h 20m plus 4h 15m: (500 + 255) ÷ 60 = 12.58 hours, not 8.33 + 4.25 rounded twice.

Frequently asked questions

What is 45 minutes as a decimal?

0.75 hours. 45 ÷ 60 = 0.75.

What is 20 minutes in decimal hours?

0.33 hours. 20 ÷ 60 = 0.3333, usually written as 0.33.

What is 1.75 hours in hours and minutes?

1 hour and 45 minutes. Multiply the decimal part by 60: 0.75 × 60 = 45.

Why is 7 hours 45 minutes written as 7.75 and not 7.45?

Because there are 60 minutes in an hour, not 100. 45 minutes is 45/60 = 0.75 of an hour. Writing 7.45 would mean 7 hours and 27 minutes.

How do I convert decimal hours back to minutes?

Multiply by 60. 3.4 hours × 60 = 204 minutes, which is 3 hours and 24 minutes.

What is a tenth of an hour?

Six minutes. Billing in tenths means rounding every entry to the nearest 6 minutes, so 0.1 is 6 minutes, 0.5 is 30 minutes and 1.0 is a full hour.

Other calculators

Weekly timesheet calculator

A full week at a time, with breaks, overtime, saving, export and printing.

Time card calculator

One day, punched in and out up to three times, with a break deduction.

Hours between two times

How long is 9:15 to 17:40? Decimal hours, hours and minutes, total minutes.

Overtime pay calculator

Split hours into regular, overtime and double time and price each band.

Blank timesheet templates

Weekly, biweekly and monthly sheets to print or download as CSV.