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Time Conversion: milliseconds to seconds, seconds to milliseconds

Use the online conversion calculators to convert between milliseconds (ns) and seconds (sec).

Conversion Calculators

Enter your value in one of the conversion calculators below to convert milliseconds to seconds or convert seconds to milliseconds.

Convert milliseconds to seconds

milliseconds

Convert seconds to milliseconds

milliseconds

How to convert milliseconds to seconds: Use the conversion calculator on the left-hand side titled "Convert milliseconds to seconds". Enter a value in the milliseconds field and click on the "Calculate seconds" button. Your answer will appear in the sec field.

How to convert seconds to milliseconds: Use the conversion calculator on the right-hand side titled "Convert seconds to milliseconds". Enter a value in the sec field and click on the "Calculate milliseconds" button. Your answer will appear in the milliseconds field.

Definitions

Below are definitions relating to these conversion formulas:

Unit Symbol Description
nanosecond ns  
microsecond μs 1 microsecond = 1,000 nanoseconds
millisecond ms 1 millisecond = 1,000 microseconds
second (base unit of Time) sec or s 1 second = 1,000 milliseconds
minute min 1 minute = 60 seconds
hour hr 1 hours = 60 minutes
day d 1 day = 24 hours
week wk 1 week = 7 days
fortnight 4tnite 1 4tnite = 2 weeks or 14 days