Last updated: October 2026
How to convert hours and minutes to decimal
Short answer: divide the minutes by 60 and add the hours. 7h 30m → 7 + 30/60 = 7.50. 1h 45m → 1 + 45/60 = 1.75. That decimal is what payroll software multiplies by your hourly rate.
- Take the whole hours as-is. 7 hours stays 7.
- Divide the minutes by 60. 30 minutes ÷ 60 = 0.50. (45 minutes ÷ 60 = 0.75; 15 minutes ÷ 60 = 0.25.)
- Add them together. 7 + 0.50 = 7.50 decimal hours.
- If you have seconds too, divide by 3,600. 2h 30m 45s = 2 + 30/60 + 45/3600 = 2.5125.
Decimal hours = Hours + (Minutes ÷ 60) + (Seconds ÷ 3,600)
Examples: 7h 30m = 7.50 · 1h 45m = 1.75 · 8h 15m = 8.25
Decimal to hours converter
Short answer: the whole number is your hours; multiply the remainder by 60 for minutes. 7.75 → 7 hours 45 minutes (0.75 × 60 = 45). 8.5 → 8 hours 30 minutes. Switch the tool above to "Decimal → time" to convert instantly.
A decimal to hours calculator is just this conversion in reverse — the tool above handles both directions. The math: floor the decimal for whole hours (7.75 → 7), take the fractional part (0.75), multiply by 60 (45 minutes). If rounding pushes minutes to 60, the tool rolls them into the hours (8.999 → 9h 0m).
Minutes to decimal conversion chart
Short answer: minutes ÷ 60 = decimal. 15 min = 0.25 · 30 min = 0.50 · 45 min = 0.75. Full 0–59 table below.
The decimal to minute conversion table every payroll clerk memorizes — all 60 values:
| Min | Dec | Min | Dec | Min | Dec | Min | Dec |
|---|
| 0 | 0.00 | 15 | 0.25 | 30 | 0.50 | 45 | 0.75 |
| 1 | 0.02 | 16 | 0.27 | 31 | 0.52 | 46 | 0.77 |
| 2 | 0.03 | 17 | 0.28 | 32 | 0.53 | 47 | 0.78 |
| 3 | 0.05 | 18 | 0.30 | 33 | 0.55 | 48 | 0.80 |
| 4 | 0.07 | 19 | 0.32 | 34 | 0.57 | 49 | 0.82 |
| 5 | 0.08 | 20 | 0.33 | 35 | 0.58 | 50 | 0.83 |
| 6 | 0.10 | 21 | 0.35 | 36 | 0.60 | 51 | 0.85 |
| 7 | 0.12 | 22 | 0.37 | 37 | 0.62 | 52 | 0.87 |
| 8 | 0.13 | 23 | 0.38 | 38 | 0.63 | 53 | 0.88 |
| 9 | 0.15 | 24 | 0.40 | 39 | 0.65 | 54 | 0.90 |
| 10 | 0.17 | 25 | 0.42 | 40 | 0.67 | 55 | 0.92 |
| 11 | 0.18 | 26 | 0.43 | 41 | 0.68 | 56 | 0.93 |
| 12 | 0.20 | 27 | 0.45 | 42 | 0.70 | 57 | 0.95 |
| 13 | 0.22 | 28 | 0.47 | 43 | 0.72 | 58 | 0.97 |
| 14 | 0.23 | 29 | 0.48 | 44 | 0.73 | 59 | 0.98 |
Hours to decimal in Excel
Short answer: if the time is in A1, use =A1*24 and format the cell as a number. 7:30 → 7.5. Going backwards, =A1/24 formatted as time turns 7.5 into 7:30.
Excel stores times as fractions of a day, so multiplying by 24 gives decimal hours. For a text entry like "7:30" in A1, =A1*24 returns 7.5 — format the cell as a number with two decimals for 7.50. If you just need a one-off conversion without formulas, use the calculator above instead.
Weekly hours calculator
Short answer: a weekly hours calculator totals your Mon–Sun shifts — the timesheet version of this page. Use our
weekly hours calculator: enter each day's clock-in, clock-out and lunch minutes for the full week in one grid, including breaks, overnight shifts and overtime. For a single duration instead, use our
elapsed time calculator.
Weekly hours searches usually mean one of two things: a freelancer adding up billable days, or an employee filling in a timesheet. Either way the workflow is the same — convert each day to decimal hours with this page (7h 30m → 7.50), then sum the seven values. Our dedicated weekly hours calculator does the whole week in one grid, including breaks and overtime.
Timecard calculator with lunch
Short answer: a timecard with lunch needs the duration minus the break: (end − start) − lunch = paid hours, then convert to decimal. 9:00 AM → 5:30 PM with a 30-minute lunch = 8.5 − 0.5 = 8.00 paid hours.
Timecard calculator with lunch is the parent topic behind this whole keyword family — it bundles the duration, the break deduction and the decimal conversion. Pair the tools: use our elapsed time calculator for the exact duration (overnight shifts handled), subtract your lunch, then convert with this page. If the week included overtime, our overtime tax calculator estimates the 2025–2028 federal tax treatment of the premium half.
More time calculators
Short answer: this page is part of ToolVaultly's growing time cluster — duration math, timestamps, sleep and overtime.
Time calculator searches split into a few jobs, and we cover them: our elapsed time calculator finds durations between any two dates and times (the 86K-volume parent topic), the Unix timestamp converter translates epoch seconds to readable dates, the sleep cycle calculator works backwards from wake time, and the overtime tax calculator handles the tax side of extra hours. If you're really asking for an hours calculator in the payroll sense — hours in, pay out — this page plus the optional rate field is exactly that.
Frequently asked questions
What is an hours to decimal calculator?
It's a free tool that converts clock time into decimal hours for payroll, invoicing and timesheets. Enter 7 hours 30 minutes and it returns 7.50 decimal hours — the format payroll software multiplies directly by an hourly rate. The calculator above does the conversion instantly, and can also run it in reverse.
What is 1 hour 30 minutes in decimal?
1.5 hours. Divide the minutes by 60 and add the hours: 1 + (30 ÷ 60) = 1.50. Try it above — 1h 30m converts to 1.50 decimal hours.
How do I convert hours to decimal for payroll?
Divide the minutes by 60, add the hours, then multiply by the hourly rate. Example: 7h 45m = 7 + 45/60 = 7.75 hours; at $20/hr that's $155.00. Enter your hours and an optional rate above and the calculator shows the pay estimate automatically.
How do I convert decimal hours in Excel?
If the time is in cell A1, use =A1*24 and format the cell as a number. For example, 7:30 stored as a time becomes 7.5. Going the other way, =A1/24 turns 7.5 into 7:30 — just format the cell as time.
Is there a decimal to hours calculator?
Yes — switch the mode above to "Decimal → hours/minutes". Enter 7.75 and it returns 7 hours 45 minutes. The math: take the whole number as hours (7), then multiply the remainder by 60 for minutes (0.75 × 60 = 45).
What is hours and minutes to decimal calculator?
It's the same conversion with the words in a different order: hours and minutes in, decimal hours out. This page is that tool — 2h 30m 45s becomes 2.5125 decimal hours.
Is there a weekly hours calculator?
Yes — use our
weekly hours calculator: a full Mon–Sun timesheet with per-day clock-in, clock-out and lunch, the overtime split and an optional pay estimate. For a single duration, use our elapsed time calculator.
Is my data private?
Completely. Every calculation runs locally in your browser with JavaScript — nothing you enter is sent to a server, stored, or tracked.
