Decimal Hours Converter

Instantly convert hours and minutes to decimal time and back. Choose rounding rules (0.1h, 6-minute, 15-minute, and more) commonly used on timesheets and payroll.

Hours & Minutes to Decimal Hours

Enter hours, minutes, and seconds to convert to decimal hours used in payroll and timesheets.

Minutes and seconds are clamped between 0 and 59.

Decimal hours
1.5
Formula
h + m/60 + s/3600

Decimal Hours to Hours & Minutes

Convert decimal time (e.g., 7.75) to hours, minutes, and seconds.

Examples: 7.5 = 7:30, 7.75 = 7:45, 7.1 ≈ 7:06

Rounded hours
7.75
As H:MM:SS
07:45:00
Exact (no rounding)
07:45:00

Quick minute → decimal conversions

Common conversions you’ll see on timesheets and payroll exports.

5 min
0.083
6 min (0.1h)
0.1
7.5 min (1/8h)
0.125
10 min (1/6h)
0.167
12 min
0.2
15 min (1/4h)
0.25
20 min
0.333
30 min (1/2h)
0.5
45 min
0.75
90 min
1.5

How to convert minutes to decimal hours

Converting time to decimal hours makes it easier to calculate pay. Use the formula: hours + (minutes ÷ 60) + (seconds ÷ 3600).

  • 30 minutes = 0.5 hours (30 ÷ 60)
  • 15 minutes = 0.25 hours (15 ÷ 60)
  • 6 minutes ≈ 0.1 hours (6 ÷ 60)

Common rounding rules

Companies often round to keep time entry consistent. Popular methods include: 0.1h decimals, nearest minute, and 5, 6, 7.5, 10, 15, or 30-minute increments.

  • 6-minute rounding: 1/10 of an hour (0.1h)
  • 7.5-minute rounding: 1/8 of an hour (0.125h)
  • 15-minute rounding: quarter-hour (0.25h)

Why use a decimal hours calculator?

Payroll systems and spreadsheets expect decimal hours. This free tool helps you convert quickly and accurately—no manual math or rounding mistakes.

Why not automate your payroll reports?

ClockIt generates payroll‑ready timesheets with your preferred rounding rules, overtime, and PTO—so you can run payroll in minutes and skip manual conversions.

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Our reports can be customized and saved as segments allowing you to generate reports in minutes. You can generate reports for payroll, attendance, time off, and more. Our reports are easy to read and can be exported to Excel, CSV or simply copy pasted.

easily make corrections and adjustments to time entries with clockit time tracking software

Corrections and Adjustments

Correct time entries with a few clicks. You can add, edit, or delete time entries for any employee. You can also add notes to time entries to provide additional context. Managers can view and approve time entries for their team members. Employees can view their time entries and make corrections as needed. Corrections can be done on the web and mobile. Get instant notifications on time entry corrections.