DSD AC : Race Pace Calculator.

Complete only 2 of Distance, Time, or Pace

Overall
Race Distance
	Miles
	Kms
Marathon
½-Marathon

Overall
finish time
	Hrs
	Mins
	Secs

Race Pace
per Mile	or	per Km
	mins
	secs

You can use this calculator to calculate :
Target Race Pace : You supply Distance and Target Finish Time.
Target Finish Time : You supply Distance and Race Pace.
Training Mileage Covered : You supply Training Time and Normal Training Pace (useful for keeping training log).
You can use it after races to work out pace per mile. It works with long and short races - e.g. use it to provide pace per mile from 800m track race by entering race distance as .8 km.
It converts from Miles to Kms and will do it for all distances. It will provide Race Pace in both.

Technical Notes :
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Measurements and Conversions used in the calculations :
Miles are multiplied by 1.609344 to get Kms. Kms are divided by same to get Miles.
Marathon is 26 Miles 385 yards which is 26.21875 Miles or 42.19499 Kms. ½-Marathons are a proportion.