2:45 → 2.75
Forty-five minutes is three quarters of an hour, or 0.75.
Duration converter
Convert time to decimal hours
Turn hours, minutes, and seconds into decimal hours—one value or a pasted list—without treating minutes as hundredths.
- Works in your browser
- No account or upload
- Handles 24+ hour durations
Single conversion
This changes display only—not the source duration or a workplace rule.
Decimal hours
Your result will appear here.
Rounded value
Convert a pasted list
Paste one duration per line. Valid rows keep their order; a bad row never blocks the others.
Nothing pasted here is uploaded or stored.
| Row | Input | Normalized | Unrounded | Rounded | Status |
|---|
The calculation
How to convert minutes to decimal hours
First turn the duration into seconds, then divide by 3,600. Equivalently, divide minutes by 60 and seconds by 3,600 before adding them to the hours.
decimal hours = hours + minutes ÷ 60 + seconds ÷ 3,600 For 2:45, the calculation is 2 + 45 ÷ 60 = 2.75. Minutes use sixty parts per hour, so 2 hours 45 minutes is not 2.45 hours.
0:30 → 0.50
Thirty minutes is one half of an hour. At two places, it displays as 0.50.
40:30 → 40.50
This tool treats values as durations, so hours never wrap after 24.
Precision
Display rounding is not a time policy
Some fractions repeat in decimal notation. One minute is 1/60 of an hour, approximately 0.016666…. The calculator keeps the source duration unchanged and rounds only the displayed decimal to the precision you select.
A workplace, client, payroll system, or contract may have separate rules about which time counts or how recorded time is rounded. This format converter does not choose or apply those rules.
Related tools