Time Converter
Convert between hours, minutes, seconds, days, and weeks instantly. A fast, easy time unit converter for any calculation.
Enter a value in any field and all other units will update automatically.
How to Use This Time Converter
- Type a number into any one of the six unit fields (weeks, days, hours, minutes, seconds, or milliseconds)
- All other fields update automatically and instantly as you type
- Clear a field to reset every other field back to blank
- Copy the converted value you need from whichever unit field is useful for your task
Formula & How It Works
Convert to a common base (seconds)
totalSeconds = enteredValue × unitToSecondsFactorEvery unit has a fixed conversion factor into seconds: 1 week = 604,800s, 1 day = 86,400s, 1 hour = 3,600s, 1 minute = 60s, 1 second = 1s, 1 millisecond = 0.001s. Whatever you type is first converted into this common base.
Convert from the base to every other unit
otherUnitValue = totalSeconds ÷ otherUnitToSecondsFactorThe tool then divides that total-seconds value by each remaining unit's factor to instantly populate all the other fields, rounded to 10 significant digits.
Hours to minutes example
minutes = hours × 60Because 1 hour = 3,600 seconds and 1 minute = 60 seconds, dividing 3,600 by 60 gives the multiplier of 60 used to go directly from hours to minutes.
Practical Examples & Common Use Cases
Converting a workday into minutes
Enter "8" in the Hours field. The tool instantly shows 480 in Minutes (8 × 60) and 28,800 in Seconds (8 × 3,600) — useful for estimating meeting or task budgets.
Converting a countdown into days
Enter "72" in the Hours field to see it equals exactly 3 in the Days field (72 ÷ 24), handy for figuring out shipping windows or project deadlines given in hours.
Converting race splits into seconds
Enter "1.5" in the Minutes field to instantly see 90 in the Seconds field (1.5 × 60), useful for comparing a runner's split time against a seconds-based leaderboard.
Frequently Asked Questions
There are 86,400 seconds in a day (24 hours × 60 minutes × 60 seconds).
There are 168 hours in a week (7 days × 24 hours).
Divide the number of minutes by 60 to get hours. For example, 90 minutes = 90 ÷ 60 = 1.5 hours.