Decimal Hours Conversion Chart: Calculate Exact Shift Pay

If you work 7 hours and 30 minutes at $20 an hour and calculate 7.30 × 20 on a calculator, you get $146 instead of your true $150 pay. Standard clocks count 60 minutes in an hour, while payroll systems run on base-10 decimals.

How to Convert Minutes to Decimal Hours

To convert minutes to decimal hours, divide the total number of minutes worked by 60 (for example, 45 minutes divided by 60 equals 0.75 hours). Add that decimal to your whole hours before multiplying by your pay rate.

Quick Decimal Conversion Reference

Use these common minute conversions when checking your shift card or timesheet:

• 15 Minutes: 0.25 hours (1/4 of an hour)
• 30 Minutes: 0.50 hours (1/2 of an hour)
• 45 Minutes: 0.75 hours (3/4 of an hour)
• 6, 12, 18, 24 Minutes (Tenth-Hour Intervals): 0.1, 0.2, 0.3, and 0.4 hours respectively for workplaces using 6-minute payroll rounding.

How to Verify Your Timesheet Accuracy

1. Convert daily minutes first: Always convert daily shift minutes into decimals before multiplying by your hourly pay rate.
2. Watch for payroll rounding rules: Check whether your employer uses 5-minute, 6-minute (tenth-hour), or 15-minute (quarter-hour) rounding on time cards.
3. Keep automated digital records: Use an offline shift logger to track exact start, stop, and break times to catch discrepancies early.

This is general information, not personalized tax or legal advice — check with a tax professional or your state labor office for your situation.