Time to Decimal Calculator ConvertTimeToDecimal

Time to Decimal Converter for Payroll

Quickly convert hours and minutes to decimal values for payroll, invoices, and time tracking.

Round to
Decimal Hours0.00
Total Minutes0.00
Total Seconds0
Round to

Why Use This Tool

  • Instant Results

    Converts as you type — no buttons to click.

  • 100% Private

    All calculations run locally in your browser. We never store your data.

  • Payroll Accurate

    Uses the standard ÷60 formula trusted by HR teams worldwide.

  • Works Everywhere

    Desktop, tablet, or phone — no app install needed.

Trusted by 10,000+ HR professionals

Quick Tip

To convert minutes to decimals, simply divide the minutes by 60. For example, 30 minutes is 30/60 = 0.5 hours.

Stop calculating manually.

Automate your payroll with Gusto. Get 3 months free and never worry about time conversions again.

Try Gusto for Free

Minutes to Decimal Chart

Quick reference for common minute-to-decimal conversions.

Minutes Decimal
1 min 0.02
2 min 0.03
3 min 0.05
4 min 0.07
5 min 0.08
6 min 0.10
7 min 0.12
8 min 0.13
9 min 0.15
10 min 0.17
11 min 0.18
12 min 0.20
13 min 0.22
14 min 0.23
15 min 0.25
16 min 0.27
17 min 0.28
18 min 0.30
19 min 0.32
20 min 0.33
Minutes Decimal
21 min 0.35
22 min 0.37
23 min 0.38
24 min 0.40
25 min 0.42
26 min 0.43
27 min 0.45
28 min 0.47
29 min 0.48
30 min 0.50
31 min 0.52
32 min 0.53
33 min 0.55
34 min 0.57
35 min 0.58
36 min 0.60
37 min 0.62
38 min 0.63
39 min 0.65
40 min 0.67
Minutes Decimal
41 min 0.68
42 min 0.70
43 min 0.72
44 min 0.73
45 min 0.75
46 min 0.77
47 min 0.78
48 min 0.80
49 min 0.82
50 min 0.83
51 min 0.85
52 min 0.87
53 min 0.88
54 min 0.90
55 min 0.92
56 min 0.93
57 min 0.95
58 min 0.97
59 min 0.98
60 min 1.00

More Time Conversion Tools

Decimal to Time

Convert decimal hours back to standard HH:MM time format.

Try it now

Batch Converter

Paste an entire column from Excel and convert all time entries at once.

Try it now

Time Card Calculator

Weekly timesheet with break deductions — get totals in HH:MM and decimal.

Try it now

How to Convert Time to Decimal for Payroll

Calculating payroll accurately is crucial for any business. One of the most common challenges HR professionals face is converting "Hours and Minutes" (HH:MM) into "Decimal Hours." Since most payroll software and Excel formulas require decimal inputs to calculate gross pay, understanding this conversion is essential.

Why Convert Time for Payroll?

Standard time format uses a base-60 system (60 minutes in an hour), while currency and standard mathematics use a base-100 (decimal) system. If an employee works 8 hours and 30 minutes at a rate of $20/hour, you cannot simply multiply 8.30 by 20. Doing so would result in $166, which is incorrect. The actual calculation should be 8.5 hours multiplied by $20, resulting in $170.

The Golden Formula

Decimal Hours = Hours + (Minutes / 60)

Excel Formula for Time Conversion

If you are using Microsoft Excel or Google Sheets, you can automate this conversion using a simple formula. If your time value (e.g., 08:30) is in cell A1, use the following formula: 

  =A1 * 24

Ensure the cell containing the formula is formatted as a "Number" or "General," not as "Time." Excel stores time as a fraction of a 24-hour day, so multiplying by 24 converts it to decimal hours.

Common Conversion Mistakes to Avoid

  • The .30 Trap: Assuming 30 minutes is .30 in decimal. It is actually .50.
  • Rounding Errors: Rounding too early in the calculation can lead to discrepancies in final pay. Always round at the very end.
  • Format Mismatch: Entering decimal hours into a system expecting HH:MM, or vice versa.

Frequently Asked Questions

What is 30 minutes in decimal hours?

30 minutes is 0.50 hours. Be careful not to write it as 0.30 — that's only 18 minutes, and it's one of the most common payroll errors.

What is 15 minutes in decimal?

15 minutes is 0.25 hours (15 ÷ 60 = 0.25). So 8 hours and 15 minutes equals 8.25 decimal hours.

How do I convert 45 minutes to decimal?

Divide 45 by 60 to get 0.75 hours. Therefore, 7 hours and 45 minutes is 7.75 decimal hours.

What is 0.1 hours in minutes?

0.1 hours equals 6 minutes (0.1 × 60 = 6). This is useful to know when reading decimal timesheets.

How do I convert time to decimal in Excel?

Use the formula =(A1-INT(A1))*24. Make sure the cell format is set to "Number", not "Time". Alternatively, simply multiply a time cell by 24 to get decimal hours.

Why does Excel show 12:00 PM when I type 0.5?

Excel stores time as fractions of a day (1.0 = 24 hours). So 0.5 represents half a day, which is 12:00 PM. To see decimal hours, change the cell format from "Time" to "Number".

Why do employers use decimal time for payroll?

Decimal time (e.g., 8.5 hours) is required for multiplication with hourly rates. You can't multiply $20/hr by "8:30" — but you can multiply $20 × 8.50 to get $170.00.

Is there a difference between decimal time and industrial time?

No, they are the same thing. "Industrial time" is simply an older term used in manufacturing for expressing time in decimals instead of hours and minutes.

How do I calculate payroll manually?

First, convert total minutes to decimal (Minutes ÷ 60). Add this to the whole hours. Then multiply the total decimal hours by the hourly wage. For example: 8:30 → 8.50 × $20 = $170.

Is this tool accurate enough for official payroll?

Yes. Our converter uses standard floating-point arithmetic with rounding to 2 decimal places — the same precision used by major payroll software. All calculations run locally in your browser.