Hours Calculator
Add up multiple hours and minutes (e.g., for a timesheet).
Summing up hours and minutes for a weekly timesheet or project log can be surprisingly difficult because time behaves differently than regular money or math. You cannot just add "0.5" and "0.5" to get 100 minutes. Our Hours Calculator does the heavy lifting for you, allowing you to enter multiple time blocks and adding them correctly in hour/minute format.
Timesheet
Total Time
Frequently Asked Questions
Timesheets made Easy
Summing up timesheets manually is surprisingly error-prone. Our brains are wired for base-10 math (where 100 cents = 1 dollar), but time uses base-60 (60 minutes = 1 hour). This often leads to "off-by-one-hour" errors when minutes roll over past 60.
1. Decimal vs. Standard Time
Payroll systems often require hours to be logged as decimals. This separates time calculations from monetary calculations:
- Standard: 1 hour 30 minutes (1:30). Ideally used for tracking duration.
- Decimal: 1.5 hours. Ideally used for calculating cost (Rate x Hours).
Common Conversions:
- 15 mins = .25 hours
- 30 mins = .50 hours
- 45 mins = .75 hours
- 10 mins = ~0.17 hours
2. Tips for Freelancers
Always round up your billable time to the nearest 15-minute increment. This is standard industry practice to account for the "context switching" costs of starting and stopping work tasks.
3. Frequently Asked Questions (FAQ)
Q: What if I have more than 24 hours?
This calculator simply sums the total hours. If you enter 25 hours, it will display "25 hours", not "1 day 1 hour". This is intentional for timesheet purposes.