Time to Decimal Hours Converter
Turn 1:30 into 1.5 — and back. Bulk mode adds up a whole list of times at once.
Quick answer: Turn 1:30 into 1.5 — and back. Bulk mode adds up a whole list of times at once.
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Frequently asked questions
- How do I convert 1 hour 45 minutes to decimal hours?
- Type 1:45 in the hh:mm box and the decimal field updates to 1.75 — because 45 minutes is three-quarters of an hour.
- How do I convert 2.5 hours to hours and minutes?
- Type 2.5 in the decimal field and the hh:mm field updates to 2:30. The fractional hour (0.5) becomes 30 minutes.
- Why do companies use decimal hours?
- Decimal hours make multiplication trivial — billing 8.5 hours at $40/hr is 340; billing 8:30 at $40/hr requires you to convert first. Most timesheet, payroll and invoicing systems prefer the decimal form.
- How do I round decimal hours?
- Many companies round to the nearest 0.25 (15 minutes), 0.1 (6 minutes), or 0.05. Copy the result and round in your spreadsheet, or change the input precision.
- How do I convert minutes to hours?
- Type the minutes followed by m (e.g. "90m") and the tool returns 1.5 hours. The minutes part of an hh:mm entry must be 0–59, so use the "90m" form (or split into 1:30) for values over 59 minutes.
- Can I convert multiple lines at once?
- Yes — paste a list of times into the bulk-mode textarea (one per line). The tool converts each one and shows a running total in both hh:mm and decimal.
- Does this work for invoicing?
- Yes. Paste your tracked time entries into bulk mode, copy the total, and use it directly on your invoice.
- What is 0.75 hour in minutes?
- 0.75 × 60 = 45 minutes. Type 0.75 in the decimal field and the hh:mm field shows 0:45.
- How do I convert 8:30 to decimal?
- Type 8:30 — the decimal field shows 8.5. The math: 8 hours plus (30 / 60) = 8 + 0.5 = 8.5.
- Can I do this in Excel?
- Yes — multiply the time cell by 24 to get decimal hours (Excel stores time as a fraction of a day). This tool is faster for one-off conversions and bulk pasting.