More Than a Calculators
Automotive & Transportation Calculators
Plan trip and fuel cost, estimate EV charging, work out tire sizing & RPM, and use performance tools (torque/HP, AFR, injector size, braking distance) — fast and practical.
Tip: Try “tire size”, “speed vs rpm”, “torque to hp”, or “brake distance”.
Fuel & Trip Planning
Trip cost, fuel cost, consumption, and efficiency tools.
Trip Cost Calculator
Estimate trip fuel expense.
Fuel Cost Calculator
Fuel expense for distance/usage.
Trip Time Calculator
Estimate travel time.
Fuel Consumption Per Mile
Consumption per mile (or per distance).
Fuel Economy Converter
Convert fuel economy units.
Fuel Efficiency Converter
Convert fuel efficiency formats.
Brake Specific Fuel Consumption
BSFC estimate for engine performance analysis.
EV & Charging
Estimate EV charging cost and convert energy to range.
Tires, Gearing & RPM
Tire sizing tools and RPM/speed estimators.
Performance & Engine Tools
Torque/HP conversions, displacement, AFR, injector sizing, braking distance, and balance.
Torque Calculator
Calculate torque from power/RPM or inputs.
Horsepower to Torque
Convert HP and RPM to torque.
Torque to HP at RPM
Convert torque at RPM to horsepower.
Horsepower Loss
Estimate drivetrain/power losses.
Engine Displacement
Calculate displacement from bore/stroke.
Air-Fuel Ratio (AFR)
AFR calculations for tuning/analysis.
Fuel Injector Size
Estimate injector size requirements.
Vehicle Weight Distribution
Front/rear balance estimates.
Brake Distance
Estimate stopping distance.
Converters (Speed, Torque, Power)
Helpful unit converters for transportation and automotive work.
Ownership & Depreciation
Estimate how value changes over time.
Popular Automotive Calculators
These are the most-used tools people typically start with.
Automotive & Transportation FAQ
Quick answers to common questions.
Which calculators are most useful for trip planning?
Start with Trip Cost, Fuel Cost, and Trip Time. If you track consumption, use Fuel Consumption Per Mile too.
How do tire size changes affect RPM?
Changing tire diameter changes the distance traveled per wheel rotation — that impacts RPM at the same speed. Use Tire Diameter to RPM and Speed vs RPM.
How do I convert torque and horsepower?
Horsepower depends on torque and RPM. Use Torque to HP at RPM (or HP to Torque) to convert.
How is EV charging cost calculated?
Charging cost is estimated from kWh used multiplied by electricity price per kWh (losses may add a bit).
What does depreciation estimate?
Depreciation estimates how asset value drops over time. For vehicles, it’s a key part of total cost of ownership.