Hours Calculator
Calculate the hours and minutes between two times.
Calculate the hours and minutes between two times.
This free Hours Calculator from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Hours Calculator
- Enter your inputs (date, amount, rate, etc.).
- Pick any optional settings (tax mode, country, unit).
- Read the result - most calculators update as you type.
- Copy the result, or screenshot the breakdown for your records.
What you can do with the Hours Calculator
- Quick personal-finance maths before a major purchase.
- Tax estimates for freelancers and small businesses.
- Verify a number on an invoice or receipt.
- Help kids with homework calculations.
Why use KX Toolkit's Hours Calculator
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
For currency-aware calculators (GST, tax), always confirm the rate matches the jurisdiction on your invoice - rates change yearly.
Related Calculators
If you find this tool useful, explore the full Calculators collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How does the hours calculator work?
Enter a start time and an end time, and the calculator returns the difference in hours and minutes. It handles times that cross midnight by treating the end time as the next day if it is earlier than the start. You can also subtract a break duration to get net working hours.
What if my shift crosses midnight?
The calculator detects this automatically. If your end time (say 2 AM) is earlier than your start time (10 PM), it assumes you crossed midnight and adds 24 hours before subtracting. So a 10 PM to 6 AM shift correctly returns 8 hours, not negative 16 hours.
How do I handle unpaid breaks?
Subtract them from the total. Many calculators include a break field where you enter minutes (typically 30 or 60). A 9 AM to 5 PM shift with a 30-minute lunch is 7.5 paid hours. If your break is paid, do not subtract it, and the gross total is your paid hours.
Can I add up several shifts at once?
Some hours calculators support multiple rows for a weekly timesheet. Enter each shift's start and end, and the tool sums them into a total. This is useful for hourly workers tracking weekly hours, freelancers logging client time, or anyone calculating overtime eligibility (typically over 40 hours per week in the US).
Should I use 12-hour or 24-hour format?
Either works as long as you are consistent. The 24-hour format (military time) avoids AM/PM confusion: 14:30 is unambiguously 2:30 PM. For shifts crossing noon or midnight, 24-hour is safer. The calculator accepts both, but mixing them in one calculation can cause errors.
How do I convert decimal hours to hours and minutes?
Multiply the decimal portion by 60. So 7.75 hours equals 7 hours and 45 minutes (0.75 times 60). Conversely, divide minutes by 60 to get the decimal: 7 hours 30 minutes is 7.5 hours. Payroll systems usually want decimals; humans usually want hours and minutes. The calculator shows both.
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