News:
2009.06.27
  The first calculator related to health: BMI calculator. Do not eat too much :P
2009.06.22
  Codes used for banking (IBAN), serial numbers (ISSN), EAN, ISBN, etc. can be easily checked, if they are provided without of mistake. We made the calculator for veryfing these codes: online verifyier of identification codes.
2009.03.22
  Some math solver: Fractions explorer. Simplify a fraction in a moment !
2008.12.18
  We made something simple (simple, but very useful): Addition calculator. Displays results as for primary school - in columns (columnar addition). Small trick: it can extract numbers from given text !
Speed(velocity)
Speed(velocity) units converter - converts units between metric (kilometres per hour, meters per second and many more), british-american (miles per hour, foot per second and many more), nautical (knots) and some other (machs, speed of light etc.)
How to convert?
  • Enter the number to field "value" - enter the NUMBER only, no other words, symbols or unit names. You can use dot (.) or comma (,) to enter fractions.
    Examples:
    • 1000000
    • 123,23
    • 999.99999
  • Find and select your starting unit in field "unit".
  • And... you got the result in the table below. You'll find several results for many different units - we show you all results we know at once. Just find the one you need.
value: unit: decimals:



metric

kilometres per hour [km/h]
kilometres per minute [km/min]
kilometres per second [km/s]
metres per hour [m/h]
metres per minute [m/min]
metres per second [m/s]

british-american

miles per hour [mph]
miles per minute
miles per second [mps]
foot per hour [fph]
foot per minute [fpm]
foot per second [fps]
inch per hour [iph]
inch per minute [ipm]
inch per second [ips]
furlong per fortnight

other

speed of light in vacuum [c]
speed of sound in air
mach [M]
knot [kn]
To link directly to this Calcullator, use one of the links below:
  • velocity: http://www.calculla.com/eng/velocity
  • speed: http://www.calculla.com/eng/speed
Directly to Polish version:
  • predkosc: http://www.calculla.com/pl/predkosc
  • szybkosc: http://www.calculla.com/pl/szybkosc