Free Time Addition Calculator
Timesheets, billing and workout logs all arrive as scattered time entries. Paste one duration per line - in H:MM, "2h 15m" or plain minutes - and get the exact total in hours and minutes, decimal hours for invoicing, and total minutes, all in one click.
How to Use the Time Addition Calculator
- Enter one time duration per line (e.g. 1:30).
- Click Add Times to total them all up.
- See the sum in hours/minutes, decimal hours and total minutes.
Features
Each line accepts several formats - 1:30, 2h 15m, 90m or a plain minute count - and mixed formats can be combined in one paste. The total is reported three ways: hours and minutes, decimal hours for billing systems, and total minutes, so whatever your next step needs is ready.
Benefits & Use Cases
Freelancers total billable hours for invoices, managers add up team timesheets, athletes sum weekly training volume, and project trackers consolidate logged time. Anyone who has added a column of times by hand knows how error-prone it is - this removes the arithmetic entirely.
Tips
Use the decimal-hours total for invoices and payroll systems that bill in tenths of an hour. Keep one entry per line and double-check lines like "90" - a plain number is read as minutes. To find the gap between two clock times instead, use the Time Duration Calculator.
Frequently Asked Questions
What formats can I enter?
Four styles per line: H:MM (like 1:30), 2h 15m, 90m, or a plain number which is read as minutes.
What are decimal hours?
Hours expressed as a decimal number - 1 hour 30 minutes equals 1.5. Billing and payroll systems commonly use this format.
Can I mix different formats in one list?
Yes. Every line is parsed independently, so H:MM, 2h 15m and plain minutes can all appear together.
How do I subtract times instead?
For clock-time subtraction use the Time Subtraction Calculator; for elapsed time between two times use the Time Duration Calculator.
Is there a limit on how many entries I can add?
No practical limit - paste as many lines as you need and the total updates instantly.
Is my data uploaded anywhere?
No. Everything is calculated locally in your browser; your entries never leave your device.
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