Time Decimal Calculator
Punch in your hours and minutes, get the decimal instantly. Free, no signup, nothing to install.
The math is just division: divide the minutes by 60, then add that to your hours. So 7 hours and 45 minutes? 45 ÷ 60 = 0.75, plus 7 = 7.75 decimal hours. That's it.
Converts hours and minutes (plus optional seconds) to decimal instantly. Runs in reverse too: enter a decimal and get back hours and minutes. Batch timesheet mode totals a full week at once.
What Is Decimal Time, and Why Do Payroll Systems Use It?
Decimal time, or decimal hours, means writing a duration as one number instead of splitting it into hours and minutes. So 7 hours and 45 minutes becomes 7.75. Payroll software loves this format because the math is dead simple: 8.75 hours at $20/hr = $175.00. No fractions, no conversions, just multiplication.
The formula is just minutes ÷ 60. An 8:30 workday becomes 8.5 decimal hours. A 15-minute break is 0.25. Gusto, QuickBooks, Harvest, most Excel templates: they all want a decimal, not a time string. When your time card says 7:45 and the payroll system wants a number, this is why you're here.
⚡ Key Facts About Decimal Hours
- →1 decimal hour = 60 minutes. The decimal fraction is always minutes ÷ 60.
- →0.25h = 15 min, 0.50h = 30 min, 0.75h = 45 min. Most payroll software rounds to these quarter-hour marks by default.
- →The FLSA permits rounding to the nearest 6 or 15 minutes, as long as it doesn't consistently underpay workers.
- →Gross pay = decimal hours × hourly rate. Example: 8.75 hours × $20/hr = $175.00.
- →Excel formula:
=(HOUR(A2)*60+MINUTE(A2))/60converts HH:MM to decimal hours.
How Do I Calculate a Full Week of Timesheet Hours?
Enter your start and end times for each day, toss in any break time, and it adds everything up. You get totals in both HH:MM and decimal format, plus a gross pay estimate if you enter your hourly rate.
| Day | Start Time | End Time | Break (min) | Duration | |
|---|---|---|---|---|---|
| Total | HH:MM 00:00 | Decimal 0.0000 hrs | |||
| Gross Pay Estimate | — | ||||
Gross pay estimate before taxes and deductions.
How Do I Calculate Gross Pay from Decimal Hours?
Got your total decimal hours from the timesheet above? Drop that number in here with your hourly rate and you'll see your gross pay before taxes.
Gross pay before taxes and deductions. For reference only.
Automate This with Payroll Software
Want to skip this whole process? The tools below do the decimal conversion and payroll math automatically.
What Is Each Minute Worth in Decimal Hours? (0–59 Reference Chart)
Every minute from 0 to 59, with its exact decimal value. Good for double-checking your math or doing a quick lookup without running a full calculation. The 15, 30, 45, and 59-minute rows are highlighted since those come up constantly in payroll.
| Minutes | Decimal Hours (4 places) | Rounded (2 places) |
|---|
How Do You Convert Hours and Minutes to Decimal Hours?
Two steps. Divide the minutes by 60. Add that to your hours. That's the whole formula. 3 hours 45 minutes: 45 ÷ 60 = 0.75, so 3 + 0.75 = 3.75 decimal hours.
| What to Convert | Formula | Example |
|---|---|---|
| Minutes only | minutes ÷ 60 |
45 ÷ 60 = 0.75 |
| Hours + Minutes | hours + (minutes ÷ 60) |
7 + 0.75 = 7.75 |
| With Seconds | hours + (min ÷ 60) + (sec ÷ 3600) |
7h 45m 30s = 7.7583 |
Identify the Hours and Minutes
Split the time into two parts. If you have 7 hours and 45 minutes, you're working with 7 and 45 separately.
Divide Minutes by 60
Take the minutes and divide by 60. That gives you your decimal fraction.
45 ÷ 60 = 0.75
Add to the Hours
Add the decimal to your hours. That's your answer.
7 + 0.75 = 7.75
Worked Example: 7 hours and 45 minutes
Step 1: 45 ÷ 60 = 0.75 | Step 2: 7 + 0.75 = 7.75 decimal hours. Done.
Including Seconds
To include seconds in your conversion, divide seconds by 3600 and add to the result: seconds ÷ 3600. Full formula: decimal = hours + (minutes ÷ 60) + (seconds ÷ 3600)
Who Uses a Time Decimal Calculator?
Payroll & HR
HR teams need decimal hours because that's what payroll software runs on. Gusto, ADP, QuickBooks: they all want one number, not 8:45. Doing this conversion by hand every pay period is how errors creep into wages.
Freelancers & Consultants
Lawyers, designers, consultants. Anyone who bills by the hour needs this. If a client sees "1:45" on an invoice and you meant 1.75 hours, that's a real dispute. Most invoicing tools want a decimal anyway.
Operations & Scheduling
On a factory floor or in a warehouse, shift hours in HH:MM format are useless for cost modeling. You can't multiply 8:45 by anything. Convert it to 8.75 and the numbers work across shifts, departments, and pay periods.
Which Time Tracking Tools Convert Hours to Decimal Automatically?
If you're converting manually every week, there's probably a tool that does it for you. Here are three worth looking at.
Clockify
Free time tracking with unlimited users. Decimal-format timesheet exports available on paid plans (from $3.99/user/mo). A free plan covers core time tracking for individuals and small teams.
Try Clockify Free →Harvest
Tracks time and generates client invoices in the same tool. Good fit for freelancers and agencies who want billing and hours in one place rather than juggling two apps.
Try Harvest →Gusto
Full-service payroll for small businesses. Handles decimal hours, tax filings, and direct deposit. It's more than a time tracker; it runs your whole payroll so you're not stitching three tools together.
Try Gusto →This section contains affiliate links. We only recommend tools we've actually looked at and think are worth your time. See our full affiliate disclosure →
Frequently Asked Questions
Divide the minutes by 60, then add that to your hours. For 3 hours and 45 minutes: 45 ÷ 60 = 0.75, so the answer is 3.75. That's the whole thing.
0.5. Half an hour, half a decimal point. So if someone worked 8 hours and 30 minutes, that's 8.5 in decimal.
0.75. So 7 hours and 45 minutes is 7.75 in decimal. Quick check: 45 ÷ 60 = 0.75.
0.25. That's a quarter of an hour. Lawyers and consultants who bill in 15-minute increments use this one a lot: one block = 0.25h on the invoice.
The software just does hours × rate = pay. To do that, it needs one number, not two. 8.75 × $20 = $175.00. You can't multiply 8:45 by $20 directly. That's why decimal format exists.
Take the whole number as hours. Multiply the decimal part by 60 to get minutes. So 6.4 hours: 6 hours, plus 0.4 × 60 = 24 minutes. That's 6 hours and 24 minutes. Same logic works for any decimal.
7 hours and 30 minutes. The 0.5 decimal × 60 = 30. Half hours are easy; it's the odd decimals like 0.3333 (20 minutes) that trip people up.
Add up all decimal hours for both weeks, then multiply by the hourly rate. The timesheet tool above tracks one week at a time. Run it for week one, note the total, run it again for week two, add them up.
Most employers round to the nearest 15 minutes or 6 minutes (a tenth of an hour). The FLSA allows both, plus nearest 5 minutes, but there's a catch: it can't consistently cut employees short. The rounding has to average out neutrally over time. If it always benefits the employer, it's a wage violation.
Yep. If your time is in HH:MM format in cell A2, use =(HOUR(A2)*60+MINUTE(A2))/60 to get decimal hours. To go the other direction, converting decimal back to HH:MM display, format the cell as [h]:mm and use =A2/24. Works in Google Sheets too. See our Excel formula guide for more.
Yes, and it'll stay that way. We cover costs through occasional affiliate links to tools like Clockify and Gusto. We only mention them when they're actually relevant, not just to fill space.
Yes. Works on phones, tablets, everything. The timesheet calculator and reference chart both work on mobile too, not just the main converter.
1.75 decimal hours. 45 ÷ 60 = 0.75, plus 1 = 1.75. That's three-quarters of an hour on top of the full hour.
2.5. Exactly half of 60 is 30, so 30 ÷ 60 = 0.5. Add that to 2 and you're done.
Convert total hours worked to decimal, then subtract 40. Anything left is overtime. So 43.5 decimal hours means 3.5 overtime hours. Under the FLSA, those get paid at 1.5x the regular rate, so $20/hr becomes $30/hr for those 3.5 hours.
Use =(HOUR(A2)*60+MINUTE(A2))/60 if your time is in HH:MM format. If you just have a raw number of minutes (like 90), use =A2/60. Both work in Excel and Google Sheets.
Because the math is just multiplication. 8.75 hours × $20.00/hr = $175.00. Try doing that with "8 hours and 45 minutes" directly. You can't, not without converting first. That's the whole reason decimal format exists.
The FLSA lets employers round to the nearest 5 minutes, 6 minutes (a tenth of an hour), or 15 minutes. But only if it averages out neutrally over time. If the rounding consistently results in employees getting paid for less time than they actually worked, it's a violation under 29 C.F.R. § 785.48(b).
Take the whole number as your hours. Multiply the decimal part by 60 to get minutes. 3.4 hours: that's 3 hours, and 0.4 × 60 = 24 minutes. So 3 hours 24 minutes. Works for any decimal.
45 minutes. Multiply any decimal by 60 to get minutes: 0.75 × 60 = 45. Quick reference: 0.25 = 15 min, 0.5 = 30 min, 0.75 = 45 min.