This vehicle online calculator is designated for rough calculation of a vehicle’s power consumption driving at constant speed. Air temperature of 25 Degree Celsius and driving at sea level have been taken into account within standard conditions of air-drag and driving resistance.
Very important: Please use the dot as decimal separator: Correct: 3.141. Wrong: 3,141.
Also important: There is no concept of „negative air drag“ in physics. Apart from road gradient (which can be positive or negative) only insert positive values in the calculator fields.
Last updated on 2025-09-15.
This table helps with some typical parameters:
| some cW-values… |
typical projected
frontal areas |
rolling resistance coefficient:
Car air tires running on… |
| city bike & rider |
1.2 |
0.6 m² |
cobblestone |
0.013 |
| racing bike & rider |
0.85 |
0.42 m² |
asphalt |
0.011 |
| motorbike |
0.7 |
0.8 m² |
dirt road |
0.02 |
| car |
0.25-0.5 |
1.5-2 m² |
farm land |
0.1-0.35 |
| truck |
0.8 |
6.5-10 m² |
steel wheel on railroad |
0.0015 |
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Vehicle Physics Online Calculator
This vehicle online calculator is designated for rough calculation of a vehicle’s power consumption driving at constant speed. Air temperature of 25 Degree Celsius and driving at sea level have been taken into account within standard conditions of air-drag and driving resistance.
Very important: Please use the dot as decimal separator: Correct: 3.141. Wrong: 3,141.
Also important: There is no concept of „negative air drag“ in physics. Apart from road gradient (which can be positive or negative) only insert positive values in the calculator fields.
Last updated on 2025-09-15.
This table helps with some typical parameters:
frontal areas
Car air tires running on…