Decimal Hours Converter

Convert between hours:minutes:seconds and decimal hours instantly. Use the converter below, run batch entries for payroll, or look up common values in the reference table.

Decimal Hours
7.5000
decimal hours

How to Convert Hours and Minutes to Decimal

The formula is simple: divide minutes by 60 and add to the hours value. If you have seconds, divide by 3,600 and add that too.

Hours → Decimal

decimal = hours + (minutes ÷ 60) + (seconds ÷ 3600)
7h 30m 00s7 + 30/60 = 7.5
2h 45m 00s2 + 45/60 = 2.75
1h 15m 30s1 + 15/60 + 30/3600 ≈ 1.2583

Decimal → Hours

minutes = (decimal − ⌊decimal⌋) × 60
7.57h 30m → payroll: 07:30
2.752h 45m → payroll: 02:45
8.08338h 05m → payroll: 08:05

Batch Converter

Process multiple time entries at once. Results update automatically as you type. Hit Copy All (TSV) to export — paste directly into Excel or Google Sheets.

Batch Converter
#HoursMinutesSecondsDecimalPayroll
17.500007:30
22.750002:45
38.000008:00
Total18.250018:15

Decimal Hours Reference Table

Common time values with their decimal and payroll-ready equivalents.

Time (HH:MM:SS)Decimal HoursPayroll (HH:MM)
0h 15m 00s0.2500:15
0h 30m 00s0.5000:30
0h 45m 00s0.7500:45
1h 00m 00s1.0001:00
1h 15m 00s1.2501:15
1h 30m 00s1.5001:30
1h 45m 00s1.7501:45
2h 00m 00s2.0002:00
2h 30m 00s2.5002:30
3h 00m 00s3.0003:00
3h 30m 00s3.5003:30
4h 00m 00s4.0004:00

Why Decimal Hours Matter for Payroll & Billing

Payroll software, invoicing tools, and project management platforms almost universally expect time in decimal format. Entering 7.5 instead of 7:30 lets the system multiply by an hourly rate directly — no manual conversion needed.

For teams processing weekly timesheets, the difference between 7:30 and 7.5 might seem trivial — but across dozens of employees or hundreds of line items, manual conversion is a consistent source of errors.

Skip the math — Timemoz converts and tracks your hours automatically.

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Frequently Asked Questions

Track hours automatically with Timemoz.

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