Rider & Driver Tools

Estimate 0–100 km/h (0-60 mph) time based on power and weight.

Calculate vehicle acceleration based on speed change and time.

Calculate your average speed based on distance and travel time.

Estimate brake pad longevity based on thickness and usage.

Calculate the theoretical distance required to stop from a given speed.

Plan your rest breaks for long journeys to stay safe and alert.

Get recommendations for child car seats based on age, weight, and height.

Calculate static compression ratio for engine building and tuning.

Calculate how much it costs to drive your vehicle per kilometer or mile.

Plan your daily mileage to reach a target destination over multiple days.

Calculate total distance traveled based on time and average speed.

Estimate the maximum range of your vehicle on a full tank of fuel.

Interactive checklist for essential vehicle emergency kit items.

Calculate engine size (cc, liters) based on bore, stroke, and cylinders.

Estimate your arrival time based on current time, distance, and speed.

Calculate fuel consumption per hour of engine operation.

Calculate the total fuel cost for your trip based on distance and fuel price.

Split fuel costs between multiple people for group rides or carpooling.

Convert between different fuel efficiency units (MPG, L/100km, km/L).

See how a change in fuel price affects your monthly budget.

Calculate fuel savings by changing speed or vehicle efficiency.

Calculate gear ratios and overall drive ratios for your transmission.

Estimate engine horsepower based on track performance and vehicle weight.

Estimate the critical speed for hydroplaning based on tire pressure.

Estimate total time for long rides including fatigue and slower average speeds.

Track and summarize total vehicle maintenance and repair expenses.

Calculate your vehicle mileage in km/l, mpg, or l/100km.

Estimate your monthly or annual fuel spending based on daily commute.

Calculate total journey time including multiple stops and break durations.

Track when your next oil change is due based on mileage and oil type.

Calculate how much weight your vehicle can safely carry inside.

Calculate your vehicle performance potential using the power-to-weight ratio.

Calculate how far your vehicle travels during your reaction time.

Estimate how far you can drive once your fuel light comes on.

Comprehensive planner for road trip durations, including driving and sightseeing time.

Calculate total distance, time, and cost for a complete return journey.

Estimate engine RPM based on speed, gear ratio, and tire size.

Calculate the recommended safety gap between vehicles at different speeds.

Convert between different speed units like km/h, mph, knots, and m/s.

Calculate the difference between indicated and actual speed when changing tire sizes.

Calculate total stopping distance including reaction time and braking phase.

Convert between PSI, Bar, and kPa for accurate tire inflation.

Compare dimensions and speedometer error between two different tire sizes.

Estimate remaining tire life based on current tread depth and mileage.

Calculate the ideal tongue weight for safe trailer towing.

Convert between engine torque and horsepower at a specific RPM.

Calculate the true cost of owning a vehicle including fuel, maintenance, and insurance.

Calculate how much weight your vehicle can safely tow based on load.

Calculate the total time required for a journey based on distance and speed.

Calculate exactly how much fuel you need for a specific trip distance.

Calculate how your vehicle value decreases over time.

Calculate inner clearance and outer poke changes when changing wheel width or offset.