Hours Calculator
Free Hours Calculator. Free online tool with accurate results using verified formulas. Includes worked examples, FAQ, and instant calculations.
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Calculator
Adjust values & calculateTotal Time
7h 30m
Decimal Hours
7.50
Total Minutes
450
Understand the Math
Formula
Total Hours = (End Time - Start Time) - Break Duration
Calculates hours worked by subtracting start time from end time, then deducting break duration. Handles overnight shifts (end time before start time) by adding 24 hours. Converts to decimal hours for payroll: minutes / 60.
Last reviewed: December 2025
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NovaCalculator Editorial TeamReviewed for accuracy by our editorial team against published formulas and cited sources
Fact-checked formulasPeer-reviewedLast reviewed: December 2025
Verified for accuracy by NovaCalculator Team
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Formula
Total Hours = (End Time - Start Time) - Break Duration
Calculates hours worked by subtracting start time from end time, then deducting break duration. Handles overnight shifts (end time before start time) by adding 24 hours. Converts to decimal hours for payroll: minutes / 60.