Kilometers per hour
This is a measurement of speed typically used in countries using the metric system for transport. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h.
Kilometers per hour to Mach
Format
Accuracy
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.
Kilometers per hour to Mach formula
Kilometers per hour to Mach formula
Mach
Mach is a speed measurement based on the speed of sound. Since sound travels at different speeds in different conditions, the calculations here are given for 20°C in dry air at sea level. Mach is typically used in aviation and space exploration.
Kilometers per hour to Mach table
| -20.000kph | -0.016326Mach |
| -19.000kph | -0.015510Mach |
| -18.000kph | -0.014693Mach |
| -17.000kph | -0.013877Mach |
| -16.000kph | -0.013061Mach |
| -15.000kph | -0.012244Mach |
| -14.000kph | -0.011428Mach |
| -13.000kph | -0.010612Mach |
| -12.000kph | -0.0097956Mach |
| -11.000kph | -0.0089793Mach |
| -10.000kph | -0.0081630Mach |
| -9.0000kph | -0.0073467Mach |
| -8.0000kph | -0.0065304Mach |
| -7.0000kph | -0.0057141Mach |
| -6.0000kph | -0.0048978Mach |
| -5.0000kph | -0.0040815Mach |
| -4.0000kph | -0.0032652Mach |
| -3.0000kph | -0.0024489Mach |
| -2.0000kph | -0.0016326Mach |
| -1.0000kph | -0.00081630Mach |
| Kilometers per hour | Mach |
|---|---|
| 0.0000kph | 0.0000Mach |
| 1.0000kph | 0.00081630Mach |
| 2.0000kph | 0.0016326Mach |
| 3.0000kph | 0.0024489Mach |
| 4.0000kph | 0.0032652Mach |
| 5.0000kph | 0.0040815Mach |
| 6.0000kph | 0.0048978Mach |
| 7.0000kph | 0.0057141Mach |
| 8.0000kph | 0.0065304Mach |
| 9.0000kph | 0.0073467Mach |
| 10.000kph | 0.0081630Mach |
| 11.000kph | 0.0089793Mach |
| 12.000kph | 0.0097956Mach |
| 13.000kph | 0.010612Mach |
| 14.000kph | 0.011428Mach |
| 15.000kph | 0.012244Mach |
| 16.000kph | 0.013061Mach |
| 17.000kph | 0.013877Mach |
| 18.000kph | 0.014693Mach |
| 19.000kph | 0.015510Mach |
| Kilometers per hour | Mach |
|---|---|
| 20.000kph | 0.016326Mach |
| 21.000kph | 0.017142Mach |
| 22.000kph | 0.017959Mach |
| 23.000kph | 0.018775Mach |
| 24.000kph | 0.019591Mach |
| 25.000kph | 0.020407Mach |
| 26.000kph | 0.021224Mach |
| 27.000kph | 0.022040Mach |
| 28.000kph | 0.022856Mach |
| 29.000kph | 0.023673Mach |
| 30.000kph | 0.024489Mach |
| 31.000kph | 0.025305Mach |
| 32.000kph | 0.026122Mach |
| 33.000kph | 0.026938Mach |
| 34.000kph | 0.027754Mach |
| 35.000kph | 0.028570Mach |
| 36.000kph | 0.029387Mach |
| 37.000kph | 0.030203Mach |
| 38.000kph | 0.031019Mach |
| 39.000kph | 0.031836Mach |
| Kilometers per hour | Mach |
|---|---|
| 40.000kph | 0.032652Mach |
| 41.000kph | 0.033468Mach |
| 42.000kph | 0.034284Mach |
| 43.000kph | 0.035101Mach |
| 44.000kph | 0.035917Mach |
| 45.000kph | 0.036733Mach |
| 46.000kph | 0.037550Mach |
| 47.000kph | 0.038366Mach |
| 48.000kph | 0.039182Mach |
| 49.000kph | 0.039999Mach |
| 50.000kph | 0.040815Mach |
| 51.000kph | 0.041631Mach |
| 52.000kph | 0.042447Mach |
| 53.000kph | 0.043264Mach |
| 54.000kph | 0.044080Mach |
| 55.000kph | 0.044896Mach |
| 56.000kph | 0.045713Mach |
| 57.000kph | 0.046529Mach |
| 58.000kph | 0.047345Mach |
| 59.000kph | 0.048162Mach |
| 60.000kph | 0.048978Mach |
| 61.000kph | 0.049794Mach |
| 62.000kph | 0.050610Mach |
| 63.000kph | 0.051427Mach |
| 64.000kph | 0.052243Mach |
| 65.000kph | 0.053059Mach |
| 66.000kph | 0.053876Mach |
| 67.000kph | 0.054692Mach |
| 68.000kph | 0.055508Mach |
| 69.000kph | 0.056325Mach |
| 70.000kph | 0.057141Mach |
| 71.000kph | 0.057957Mach |
| 72.000kph | 0.058773Mach |
| 73.000kph | 0.059590Mach |
| 74.000kph | 0.060406Mach |
| 75.000kph | 0.061222Mach |
| 76.000kph | 0.062039Mach |
| 77.000kph | 0.062855Mach |
| 78.000kph | 0.063671Mach |
| 79.000kph | 0.064487Mach |