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Rolling Resistance CalculatorCalculate rolling resistance force from the coefficient, mass and gravity using F = Crr·N = Crr·m·g. Free, instant physics calculator.
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Car Center of Mass CalculatorFind your car's center of mass (CG) location from axle weights and wheelbase. Calculates distance from front and rear axles plus weight distribution.
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Turbo Size CalculatorEstimate the airflow (lb/min) your turbo must move for a target horsepower using BSFC and AFR. Quickly size a turbocharger for your engine build.
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Mileage (Fuel Economy) CalculatorCalculate your vehicle's fuel economy in miles per gallon (MPG). Enter miles driven and gallons used to get MPG plus gallons per 100 miles.
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Engine Horsepower CalculatorCalculate engine horsepower from torque (lb-ft) and RPM using HP = (Torque × RPM) / 5252. Fast, accurate, and free for any engine.
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Hot Car Temperature CalculatorEstimate how hot the inside of a parked car gets over time. Enter outside temperature and minutes to see the dangerous interior heat rise.
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Fuel Saving Calculator: Idling Stop, Rapid Acceleration, Tire PressureEstimate annual fuel litres, yen saved and CO2 reduced by eco-driving in Japan: idling stop, avoiding rapid acceleration, and correct tire pressure.
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Car Fuel Economy & CO2 Emissions per Kilometer CalculatorCalculate your car's fuel economy (km/L) and CO2 emissions per kilometer from fuel used and distance driven. Supports gasoline and diesel factors.
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Car Loan EMI CalculatorCalculate your car loan EMI (equated monthly installment), total interest and total payment from loan amount, interest rate and term in seconds.
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Car Refinance CalculatorCalculate your new car loan payment after refinancing and see your monthly and total savings instantly. Compare rates and terms with this free tool.
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RV Loan CalculatorEstimate your RV loan monthly payment, total interest, and total cost. Enter loan amount, APR, term, and down payment to plan your motorhome financing.
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Lease Mileage CalculatorEstimate your car lease excess mileage penalty. Enter your annual allowance, lease term, miles driven and per-mile rate to see your overage charge.
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Car Affordability CalculatorFind out how much car you can afford from your monthly payment, down payment, interest rate and loan term. See financed amount and total interest.
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Car Lease CalculatorEstimate your monthly car lease payment from capitalized cost, residual value, term, and money factor. See depreciation, finance charge, and total cost.
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Car Depreciation CalculatorEstimate how much your car is worth after years of use. Calculate vehicle depreciation, total value lost, and average annual loss with this free tool.
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Mileage Reimbursement CalculatorCalculate your mileage reimbursement instantly. Enter miles driven and your rate per mile to find the total amount owed for business travel.
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Money Factor CalculatorConvert an APR interest rate to a car lease money factor instantly. Enter your APR and get the money factor using MF = APR / 2400.
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Car vs Bike CalculatorCompare car driving vs biking and see how much CO2 you save. Enter distance, trips and your car's emission factor to estimate kg of CO2 avoided.
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Commute Cost CalculatorEstimate your annual and monthly commute fuel cost from distance, commute days, fuel price, and vehicle MPG. Free, fast commuting expense calculator.
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Plug-in Hybrid Economy CalculatorEstimate the combined electricity and gasoline cost of driving a plug-in hybrid (PHEV). Split electric vs gas miles to see total cost and cost per mile.
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Boost Horsepower CalculatorEstimate boosted horsepower from your naturally aspirated HP and boost pressure (PSI). Quick turbo and supercharger power gain calculator.
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Carpooling Savings CalculatorCalculate the fuel cost per person when carpooling. Enter distance, fuel efficiency, price per litre and number of passengers to see your share and savings.
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BSFC (Brake Specific Fuel Consumption) CalculatorCalculate Brake Specific Fuel Consumption (BSFC) from fuel consumption rate and power output. Get results in kg/(kW·h) and g/(kW·h) instantly.
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0-60 mph Acceleration CalculatorEstimate a vehicle's 0-60 mph time from engine power, weight, and drivetrain efficiency using a physics-based energy and acceleration model.
