Our Mission
About Hours to Decimal
We build clean, instant, and 100% private conversion tools that bridge base-60 clock time with base-10 payroll and accounting math.
Why We Built Hours to Decimal
Every day, millions of HR managers, accountants, freelancers, and employees convert hours and minutes into decimal numbers to process paychecks, bill client projects, and track working shifts.
A common payroll mistake occurs when base-60 time (such as 7 hours and 30 minutes, or 7:30) is mistakenly treated as 7.30 decimal hours instead of the correct 7.50 decimal hours. Over a single pay period, such floating-point discrepancies can lead to severe wage underpayments or overpayments.
hourstodecimal.com was created to eliminate manual calculation errors, save time for payroll professionals, and provide copy-ready decimal lookup charts with complete FLSA compliance.
100% Accurate
Calculations compute from raw seconds internally with zero rounding drift, verified to 4 decimal places.
Private & Offline
Every calculation runs client-side in your browser. No sensitive wage data or employee names touch a server.
FLSA Rounding
Supports official 5-minute, 6-minute (1/10th hour), and 15-minute (1/4th hour) neutral rounding rules.
Toolkit
Every conversion, one site.
H:MM:SS → decimal
Hours to Decimal
Convert hours, minutes and seconds into decimal hours instantly.
Open7.5 → 7:30
Decimal to Hours
Turn decimal hours back into hours, minutes and seconds.
OpenFull 0–60 chart
Minutes to Decimal
Every minute mapped to its decimal value, with a searchable chart.
Open0.75 → 45 min
Decimal to Minutes
Convert decimal hours into total minutes and mm:ss remainder.
OpenClock times → decimal
Time to Decimal
Enter clock-in and clock-out times to get elapsed decimal hours.
OpenSum + pay
Decimal Hours Calculator
Add up multiple durations and multiply by an hourly rate.
OpenWeek + rounding
Timesheet Calculator
Full weekly timesheet with breaks, FLSA rounding and CSV export.
Open