Add this calculator to your website
1 significant figure
2 significant figures
3 significant figures
4 significant figures
5 significant figures
6 significant figures
7 significant figures
8 significant figures
Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.
Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.
Note: For a pure decimal result please select 'decimal' from the options above the result.
Show result in exponential format
More information: Millimeters
More information: Parsecs
Parsecs to Millimeters (Swap Units)
Millimeters to Parsecs table
The millimetre is a unit of length in the metric system, equivalent to one thousandth of a metre (the SI base unit of length).
One meter was defined in 1983 by the
17th conference of weights and measures as “the length of the path travelled by light in vacuum during a time interval of 1/299 792 458 of a second” and the millimetre by definition is derived as being 1/1000th of that value.
The parsec is a unit of length equivalent to around 20 trillion (20,000,000,000,000)
miles, 31 trillion kilometres, or 206,264 times the distance from the earth to the sun.
A parsec is also equivalent to approximately 3.26
light years (the journey distance if you travelled at the speed of light for three years and three months).