Result = value × (factor of the unit you convert from) ÷ (factor of the unit you convert to), every factor being the size of the unit in sec: 1 min = 60 sec 1 hour = 3600 sec 1 day = 86400 sec 1 week = 604800 sec 1 month = 2.592 × 106 sec 1 year = 3.1536 × 107 sec
Worked example
1 day = 1 × 86400 ÷ 1 = 86400 sec.
Quick reference
1 sec = 0.01667 min = 2.777778 × 10-4 hour = 1.157407 × 10-5 day = 1.653439 × 10-6 week = 3.858025 × 10-7 month = 3.170979 × 10-8 year
1 day = 86400 sec = 1440 min = 24 hour = 0.14286 week = 0.03333 month = 0.00274 year
Second worked example
90 min = 90 × 60 ÷ 3600 = 1.5 hour.
Common values
Worked out with the same factors the converter uses.
1 day = 24 hour = 1440 min = 86400 sec
2 day = 48 hour = 2880 min = 172800 sec
7 day = 168 hour = 10080 min = 604800 sec
30 day = 720 hour = 43200 min = 2.592 × 106 sec
365 day = 8760 hour = 525600 min = 3.1536 × 107 sec
Common mistakes
Reading decimal hours as hours and minutes. 1.5 hours is 1 hour 30 minutes, not 1 hour 50 minutes.
Expecting 1 year to be 12 months here. The app’s month is a fixed 30 days and its year 365 days, so 1 year converts to 12.1667 months. For calendar dates use the Date Calculator.
Expecting leap years to be counted. The year is always 365 days, so 1 year = 31,536,000 seconds.
One of the unit converters in the Chemistry Calculator Suite,
alongside its chemistry, physics and maths tools. Nothing is behind a login and no value
you type is sent anywhere — the conversion runs in your own browser.
The Time converter above is the live tool — it converts right here on the page. The link under it opens the full suite with this set already selected.