Hours to Decimal Calculator (Free Payroll Converter)

๐Ÿ“… Updated September 13, 2026 โฑ 6 min read โœ๏ธ By Amara Taylor
โœ“ Free, no signup โœ“ Optional pay rate โœ“ Conversion chart โœ“ Mobile-friendly
Payroll worksheet and calculator used to convert hours to decimal for wages

To convert hours to decimal, keep the whole hours and divide the minutes by 60, then add the two together. So 8 hours 15 minutes becomes 8 + (15 รท 60) = 8.25 decimal hours. That decimal figure is what payroll systems and spreadsheets need before they can multiply your time by an hourly rate. Use the free converter below for an instant answer plus optional gross pay.

This calculator from Anchor AI Tools turns hours and minutes into decimal hours, and โ€” if you add a pay rate โ€” shows the gross pay too, so you can check a timesheet or invoice in one step.

Quick Answer: To convert hours to decimal, divide the minutes by 60 and add the result to the whole hours. For example, 8 hours 15 minutes = 8.25 decimal hours, 7 hours 30 minutes = 7.5, and 1 hour 45 minutes = 1.75. Multiply the decimal by your hourly rate to get pay: 7.75 ร— $20 = $155. The hours to decimal chart below lists the most common values.

Hours to Decimal Calculator

Enter hours and minutes below. Add an hourly rate if you want gross pay too, then click Convert and copy the decimal value into your payroll system, spreadsheet, or invoice.

๐Ÿ• Hours to Decimal Converter

Keep the hours; divide minutes by 60; add them together.

Clock Timeโ€”
Decimal Hoursโ€”

Converting just the minutes? Use the minutes to decimal converter. To go the other way โ€” decimal back to clock time โ€” see decimal to time.

Common Hours & Minutes in Decimal (Quick Lookup)

These are the most-searched hours-and-minutes values converted to decimal hours. Each row shows the rounded two-decimal value used on most timesheets, with the exact value in brackets. To convert any other time, keep the whole hours and divide the minutes by 60.

Hours & MinutesDecimal HoursExact
1 hour 15 minutes in decimal1.251.2500
1 hour 20 minutes in decimal1.331.3333
1 hour 40 minutes in decimal1.671.6667
1 hour 45 minutes in decimal1.751.7500
2 hours 20 minutes in decimal2.332.3333
2 hours 30 minutes in decimal2.502.5000
2 hours 45 minutes in decimal2.752.7500
6 hours 15 minutes in decimal6.256.2500
6 hours 40 minutes in decimal6.676.6667
7 hours 30 minutes in decimal7.507.5000
7 hours 45 minutes in decimal7.757.7500
8 hours 15 minutes in decimal8.258.2500

1 hour 45 minutes in decimal is 1.75: keep the 1 hour, then 45 รท 60 = 0.75, so 1 + 0.75 = 1.75 decimal hours. The same method works for any time โ€” for example, 7 hours 30 minutes is 7.5 because 30 รท 60 = 0.50.

The Hours-to-Decimal Formula

Decimal Hours = Hours + (Minutes รท 60)

The hours stay the same; only the minutes are converted

An hour contains 60 minutes, so each minute is worth 1/60 of an hour. To convert any hours-and-minutes time, you keep the whole hours unchanged and divide just the minutes by 60, then add the two parts together.

  1. Keep the whole hours. From 8:15, the hours are 8.
  2. Divide the minutes by 60. 15 รท 60 = 0.25.
  3. Add them together. 8 + 0.25 = 8.25 decimal hours.
  4. Multiply by the rate for pay. 8.25 ร— $20 = $165.00 gross.

Hours & Minutes to Decimal Chart

This chart shows common hours-and-minutes values and their decimal equivalents. The highlighted rows are the quarter-hour marks payroll uses most. Bookmark or print this page for quick reference.

TimeDecimalTimeDecimal
0:150.255:005.00
0:300.506:306.50
0:450.757:157.25
1:001.007:457.75
1:301.508:008.00
2:152.258:158.25
3:203.338:308.50
4:104.178:458.75
4:404.679:009.00
4:504.8340:2040.33

Pro tip: The quarter marks repeat every hour โ€” 0.25, 0.50, 0.75. For any other minute value, divide by 60. For example, 20 minutes รท 60 = 0.3333, which rounds to 0.33.

Office worker converting hours to decimal on a timesheet for payroll wages

Converting hours to decimal correctly prevents under- or over-paying on every timesheet.

Worked Payroll Examples

Example 1 โ€” A single shift with pay

๐Ÿ“‹ Convert 7h 45m at $20/hr

Keep 7 hours. 45 รท 60 = 0.75. So 7 + 0.75 = 7.75 decimal hours. Pay: 7.75 ร— $20 = $155.00.

7h 45m = 7.75 hours โ†’ $155.00

Example 2 โ€” A weekly total

๐Ÿ“‹ Convert 40h 20m at $25/hr

Keep 40 hours. 20 รท 60 = 0.3333 โ‰ˆ 0.33. So 40.33 decimal hours (displayed rounded). Using the exact value for pay: 40.3333 ร— $25 = $1,008.33.

40h 20m = 40.33 hours โ†’ $1,008.33

Example 3 โ€” Why 8:30 is not 8.30

โš ๏ธ The most common mistake

30 minutes is half an hour, so 0.50 โ€” not 0.30. Entering 8.30 instead of 8.50 undercounts 12 minutes per shift.

8h 30m = 8.50 (never 8.30)

Why Payroll Uses Decimal Hours

You cannot multiply a clock time by a wage directly. 8:30 means 8 hours 30 minutes, but typing 8.30 ร— $20 gives the wrong answer because the minutes are not a true decimal yet. Converting to 8.50 first lets standard arithmetic work: 8.50 ร— $20 = $170.00.

Under the U.S. Department of Labor's interpretation of the Fair Labor Standards Act, employers must keep accurate records of hours worked. Converting clock hours to decimal is the standard method payroll teams use to calculate regular pay, overtime, and labour-cost reports correctly. For the complete workflow including overtime, read our guide to converting time to decimal for payroll.

How to Convert Hours to Decimal in Excel or Google Sheets

If hours are in one cell and minutes in another, add them with the minutes divided by 60. If you have a clock-in and clock-out time stored as time values, subtract and multiply by 24:

// Hours in B1, minutes in C1 โ†’ decimal hours
=B1+(C1/60)

// Clock-out A2 minus clock-in A1 โ†’ decimal hours
=((A2 - A1) * 24)

Format the result cell as Number (not Time) with two decimal places. For tax or benefit deductions on the pay figure, pair this with the percentage calculator.

Who Uses Hours-to-Decimal Conversion?

This conversion is everyday work for payroll administrators calculating wages, employees checking their own pay, freelancers billing hourly clients, HR teams processing time cards, accountants tracking labour costs, and small business owners running payroll by hand. Anyone multiplying worked time by a rate needs decimal hours first.

To total a full week from clock-in and clock-out times with break deductions, use the hours worked calculator, or convert a full clock span with the time to decimal calculator.

Need to total a full timesheet with breaks?

Use the Hours Worked Calculator โ†’

Hours to Decimal โ€” Frequently Asked Questions

Common questions about converting hours into decimal hours for payroll, timesheets, billing, and spreadsheets.

How do I convert hours to decimal?
Keep the whole hours as they are and divide the minutes by 60, then add the two together. For example, 7 hours 30 minutes becomes 7 + (30 รท 60) = 7.5 decimal hours.
What are decimal hours?
Decimal hours express time as a base-10 number instead of hours and minutes, so it can be multiplied by a pay rate. 1 hour 15 minutes is 1.25 hours, and 2 hours 45 minutes is 2.75 hours.
Why is 8:30 equal to 8.50 and not 8.30?
Thirty minutes is half an hour, so it converts to 0.50, not 0.30. Entering 8.30 instead of 8.50 undercounts 12 minutes on every shift, which compounds quickly across a pay period.
What is 1 hour 45 minutes in decimal?
1.75 decimal hours. Keep the 1 hour, then divide 45 by 60 to get 0.75, and add them: 1 + 0.75 = 1.75.
What is 20 minutes in decimal hours?
20 รท 60 = 0.3333, which most timesheets round to 0.33. Because it repeats, use the exact value for pay calculations and round only the displayed figure.
How do I calculate gross pay from decimal hours?
Multiply the decimal hours by the hourly rate. For 7 hours 45 minutes at $20 an hour: 7.75 ร— $20 = $155.00. The calculator above shows gross pay when you enter a rate.
How do I convert hours to decimal in Excel or Google Sheets?
With hours in B1 and minutes in C1, use =B1+(C1/60). For a clock-out minus clock-in stored as time values, use =((A2-A1)*24) and format the cell as Number, not Time.
How do I convert decimal time back to hours and minutes?
Keep the whole number as hours and multiply the decimal part by 60 to get minutes. For faster reverse conversion, use the decimal to time calculator.
Should I round decimal hours, and to how many places?
Two decimal places is standard on timesheets. Keep the unrounded value for the pay calculation itself, since rounding first can shift the total by a few cents per shift.
Is a decimal hours chart the same as converting manually?
A chart lists common values โ€” 15 minutes = 0.25, 30 minutes = 0.50, 45 minutes = 0.75 โ€” while the formula works for any minute value. Use the chart for quarter hours and the converter for everything else.

Related Free Tools From Anchor AI Tools

โš ๏ธ Accuracy Note: This converter provides estimates for payroll and timesheet planning. Rounding of repeating decimals may differ slightly from your payroll system, and rounding rules vary by employer. Always confirm final figures with a qualified payroll professional and check your local labour laws.
Amara Taylor, who builds and maintains Anchor AI Tools
Written and reviewed by Amara Taylor ยท Content Lead, Anchor AI Tools ยท California, USA

Every formula on this page is checked against its standard method before publishing ยท How we check our tools

This converter gives figures for planning only. Confirm final pay figures with a qualified payroll professional.

Written by Amara Taylor for Anchor AI Tools ยท Last reviewed September 13, 2026 ยท ยฉ 2026 Anchor AI Tools