Cars & Bikes
Tyre size comparison with speedometer error, trip fuel cost, and power/torque unit conversion (PS, kW, hp). The tyre tool shows how far your speedo will read out once you change size.
Tire Size ComparatorCompare two tire sizes (e.g. 205/55R16 vs 215/50R17): sidewall, overall diameter, circumference, difference in mm and %, and speedometer error at 100 km/h — all in your browser.Trip Fuel Cost CalculatorEstimate fuel cost for any trip: distance, fuel economy (km/L or L/100km), price per litre, round-trip and cost split per person — instant results in your browser.Power & Torque ConverterConvert engine power between PS, kW and hp, and torque between N·m, kgf·m and lb-ft. Enter any one value and see the others instantly — all in your browser.