Instantly convert between Decimal Hours (e.g. 8.75 hr) and Hours & Minutes (8:45). Supports single entries with gross wage calculations and high-speed bulk Excel processing.
Direct Answer
How Do You Convert Decimal Hours to Minutes?
To convert decimal hours to minutes, keep the whole number as full hours and multiply the decimal fraction by 60. For example, to convert 8.75 decimal hours: the integer is 8 hours, and 0.75 × 60 = 45 minutes, giving 8 hours 45 minutes (8:45).
Minutes = Decimal Portion × 60 | Total Time = Whole Hours + (Decimal Portion × 60)
The Payroll Manager's Guide to Decimal Hours Conversion
In modern workforce management, payroll software like ADP, Paychex, Gusto, and QuickBooks performs wage arithmetic using base-10 decimal numbers rather than base-60 clock minutes.
Decimal to Minutes Math
Minutes = Decimal × 60
Multiply the decimal fraction by 60. For 7.75 hr: 0.75 × 60 = 45 mins (7:45).
Minutes to Decimal Math
Decimal = Minutes ÷ 60
Divide minutes by 60. For 8 hr 15 min: 15 ÷ 60 = 0.25 (8.25 hr).
Gross Wage Formula
Gross Pay = Hours × Rate
For 40.5 hrs @ $20/hr: 40.5 × $20 = $810.00.
FLSA 7-Minute Rounding Standard
Under 29 CFR § 785.48(b), employers may round employee punch times to the nearest 15-minute increment (quarter hour). 1–7 minutes past the quarter rounds down (0.00), while 8–14 minutes rounds up to the next quarter (0.25).
6-Minute Tenths Standard
Professional legal services and technical consultants use 6-minute tenths (0.10 hr increments) with ceiling rounding to accurately capture micro-tasks like phone calls and emails.
Frequently Asked Questions
Keep the whole number as hours, then multiply the remaining decimal fraction by 60. For example, 7.5 decimal hours equals 7 hours and (0.5 × 60) = 30 minutes (7:30).
Yes! Switch to the Bulk Excel Column Converter tab above, paste your column of data directly from Excel or Google Sheets, and the tool will instantly convert every row with real-time summary statistics and CSV export.
8.5 hours equals 8 hours and 30 minutes (or 510 total minutes).
Payroll programs like ADP, Paychex, and QuickBooks multiply hours by hourly wage rates. Because multiplying base-60 clock minutes creates mathematical errors, time is converted to decimal base-100 fractions (e.g. 8.5 × $20/hr = $170.00).
100% yes. All calculations are executed entirely in your browser using local client-side JavaScript. No employee hours, wage rates, or timesheets are ever uploaded or transmitted to any server.