Cleave Books
Conversion Calculator for Units of
Type in size . . .

select units . . .
then press

Values are shown to . . . significant figures.

inches / sec
mm / sec
inches / min
centimetres / sec
inches / hour
cm / min
feet / sec
metres / sec
feet / min
metres / min
feet / hour
metres / hour
feet / day
metres / day
miles / sec
km / sec
miles / min
km / min
miles / hour
km / hour
miles / day
km / day
Unit shown in red is the SI 'preferred' unit.
*Mach numbers are approximate (see background notes)
Very large and very small numbers appear in e-Format and have not been spaced.
Unvalued zeros on all numbers have been suppressed.
NO guarantee as to the accuracy of these values is given.
And they should be checked against some other source.
A note on Format and Accuracy is available.
There are also some
Background Notes on Speed

Go to theDictionary of UnitsOR the Calculator Menu
Version 1.4