Vehicle inputs

Vehicle

One profile feeds every calculator.

custom

Identity

Name

Year

Make

Model

Mass

Curb weightkg

Driver + fuelkgest.

Aero

Cdest.

Frontal aream²est.

Drivetrain

Drivetrain loss%est.

Driven wheels

Axle ratio:1

Gears 1–8 (0 omits)

Gear 1:1

Gear 2:1

Gear 3:1

Gear 4:1

Gear 5:1

Gear 6:1

Gear 7:1

Gear 8:1

Reverse:1

RPM minrpm

RPM maxrpm

Chassis

Wheelbasem

Track frontm

Track rearm

CG heightmest.

Weight on front%

Suspension

Unsprung Fkgest.

Unsprung Rkgest.

Each box is the total for that end. Add both corners if a car sheet lists them separately.

Wheel rate FN/mest.

Wheel rate RN/mest.

Wheel rate is a combination of spring rate and suspension geometry.

Tires

Front

Widthmm

Aspect%

Rimmm

Rear

Widthmm

Aspect%

Rimmm

Notes

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Free: 0/1 car and 0/1 motorcycle.

Load preset

Aerodynamics

Drag force and the power to hold a speed. Car vs motorcycle changes defaults and the silhouette, not the physics.

Inputs

Cdest.

Frontal aream²est.

Speedkm/h

Air densitykg/m³

Drag speed

Density helper

ρ = 1.225 kg/m³ (dry air, sea level, 15 °C).

Results

Drag force

693.1 N

155.8 lbf

Power to overcome drag

27.72 kW

37.18 hp

Power vs speed