21 minutes and 30 seconds in seconds
Result
21 minutes 30 seconds equals 1290 seconds
Converter
How to convert 21 minutes 30 seconds to seconds?
In order to convert 21 minutes and 30 seconds to seconds we need to take the minutes part and transform it into seconds. We know that 1 minute equals 60 seconds. Therefore to get the number of minutes in seconds we need to multiply the amount of minutes by 60. In this case we have to multiply 21 minutes by 60:
21m × 60s = 1260 seconds
Now we have to add both amount of seconds to get the final result:
1260s + 30s = 1290 seconds
Finally we can say that 21 min 30 sec is equivalent to 1290 seconds:
21 minutes and 30 seconds = 1290 seconds
Twenty-one minutes and thirty seconds is equal to one thousand two hundred ninety seconds.
Conversion table
For quick reference purposes, below is the minutes and seconds to seconds conversion table:
| minutes(m) seconds(s) | seconds(s) |
|---|---|
| 22 minutes 30 seconds | 1350 seconds |
| 23 minutes 30 seconds | 1410 seconds |
| 24 minutes 30 seconds | 1470 seconds |
| 25 minutes 30 seconds | 1530 seconds |
| 26 minutes 30 seconds | 1590 seconds |
| 27 minutes 30 seconds | 1650 seconds |
| 28 minutes 30 seconds | 1710 seconds |
| 29 minutes 30 seconds | 1770 seconds |
| 30 minutes 30 seconds | 1830 seconds |
| 31 minutes 30 seconds | 1890 seconds |
Units definitions
The units involved in this conversion are minutes, seconds and seconds. This is how they are defined:
Minutes
The second (symbol: s, also abbreviated: sec) is the unit of time in the International System of Units (SI), historically defined as 1⁄86400 of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds each (24 × 60 × 60 = 86400).
Seconds
The minute is a unit of time usually equal to 1⁄60 (the first sexagesimal fraction) of an hour, or 60 seconds. In the UTC time standard, a minute on rare occasions has 61 seconds, a consequence of leap seconds (there is a provision to insert a negative leap second, which would result in a 59-second minute, but this has never happened in more than 40 years under this system). Although not an SI unit, the minute is accepted for use with SI units. The SI symbol for minute or minutes is min (without a dot).