⏳ Time Unit Converter
Translate any duration between common time units without manual math.
Ideal for project planning, time tracking, physics labs, and calendar conversions.
Supports decimals and large values, including scientific notation.
8 Hours (h) equals
480 Minutes (min)
Other Units
Milliseconds (ms)
28,800,000
Seconds (s)
28,800
Hours (h)
8
Days (d)
0.333333
Weeks (wk)
0.047619
Months (avg)
0.010951
Years (yr)
0.00091262
How to Use This Calculator
Enter your duration
Input the value you need to translate. Decimals are supported for precise results.
Select the original unit
Choose whether your value is in seconds, minutes, hours, days, weeks, or years.
Choose the target unit
Pick the unit you need and copy the conversion, plus review other popular equivalents.
Formula
Seconds = Value × (seconds per source unit)
Converted Value = Seconds ÷ (seconds per target unit)
Seconds per unit: minute = 60, hour = 3,600, day = 86,400, week = 604,800, year ≈ 31,557,600.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Time conversions power project management, engineering calculations, and personal productivity. Instead of memorizing each multiplier, this converter handles them for you and presents convenient companion conversions.
The tool uses average calendar years (365.25 days) for long-term estimates. For precise civil calendars or leap-year accounting, adjust manually or use context-specific formulas.
Because the converter runs entirely in the browser, no data leaves your device—use it confidently for sensitive work or client schedules.
Frequently Asked Questions
Why does a year equal 365.25 days?
This calculator uses the astronomical average to account for leap years. For exact calendar dates, convert using days and include the precise count manually.
Can I convert milliseconds?
Milliseconds are not included by default. Convert milliseconds to seconds (divide by 1,000) before using the tool, or extend the list of units in the source code.
Does it support negative durations?
Yes. Negative values convert proportionally and can be useful for offsets or balancing time-tracking entries.
Are the results rounded?
Results display with unit-specific precision but retain full internal accuracy. Copying the values preserves the shown decimal precision.