Litres consumed per 100 kilometres; lower is better. Standard metric efficiency unit.

Energy lost deforming tires as they roll. Low-pressure or wide tires raise it.

Automotive Calculators

Weight Transfer Calculator

2026-09-27 6 min

Longitudinal load transfer in pounds from weight, CG height, wheelbase and G.

Weight Transferred: 636 lb; Added to the loaded axle
Of Vehicle Weight: 18.2 %

Calculator

Vehicle Weight(lb)

CG Height(in) Help

Center-of-gravity height

Wheelbase(in)

Longitudinal G(g) Help

Braking ~0.8-1.2, launch ~0.3-0.6

Results update live as you type

Live statistics

Weight Transferred

636 lb

Added to the loaded axle

Of Vehicle Weight

18.2 %

Results

Optimal

Weight Transferred

636lb

Added to the loaded axle

Of Vehicle Weight

18.2%

Planning estimate from standard automotive formulas. Validate with dyno, timeslip or datalog data when precision matters.

Visualizations

Results overview

636.4Weight Transferred

18.2Of Vehicle Weight

Weight Transferred vs. Vehicle Weight

Weight Transferred

636.4lb

02,000

Formula

Moment balance: inertia force at CG height reacted across the wheelbase.

Transfer = weight x CG height x G / wheelbase

Alternative Form

Braking moves it forward; acceleration moves it rearward

Variables

Symbol	Name	Unit	Description
h	CG height	in	Higher = more transfer
G	Accel	g	Braking or launch severity

Explanation

Transfer unloads one axle toward lockup (braking) or unloads the drive axle (FWD launch) — suspension and brake bias manage it.

Step-by-Step Calculation

Follow each step to understand how the result is calculated from your inputs.

Step 1

Record the inputs.

Vehicle Weight:3500 lb

CG Height:20 in

Wheelbase:110 in

Longitudinal G:1 g

Result: 4 inputs ready

Step 2

Apply the formula.

Transfer = weight x CG height x G / wheelbase

Result: Primary result = 636 lb

Step 3

Read every derived output.

Weight Transferred:636 lb

Of Vehicle Weight:18.2 %

Result: Weight Transferred = 636 lb

Final Answer

636

Worked Examples

See how the calculator works with different scenarios.

Scenario

Hard braking in a sedan.

Inputs

Weight:3,500

CG:20 in

WB:110 in

G:1.0

Calculation

3,500 x 20 x 1 / 110 = 636 lb

Result

636 lb shifts forward (18%).

Interpretation

Fronts do ~70% of the stopping — brake bias and dive follow.

Understanding Your Result

Your Result: Weight Transferred: 636 lb

What This Means

Dynamic axle load shift under braking or acceleration.

Why It Matters

Sizes brake bias, spring rates and anti-dive geometry.

Professional Interpretation

Treat the primary result as a planning estimate, then validate on a dyno, at the track, or with logged sensor data. If measured numbers disagree by more than ~10%, re-check inputs (units are the usual culprit) before changing parts.

Recommendations

•Double-check units on every input before trusting the result
•Compare against the worked example below to sanity-check magnitude
•Validate with measured data (dyno, timeslip, datalog) when it matters

Learn — fuel economy, deeply

Acceleration pivots load between axles around the contact patches.

1 · Where the gallon goes (energy path)

Engine heat

60–70% lost

Coolant + exhaust carry most energy away. Hybrids recover some via Atkinson cycle + regen.

Driveline

5–15% lost

Transmission, differential, accessories. CVTs and 8–10 speed autos lose less.

Aero drag

∝ v²

Doubles from 55→78 mph. Roof boxes hurt more than trunks.

Rolling + brakes

10–20%

Tires, weight, stops. Regen braking (hybrid/EV) reclaims city braking energy.

4 · Measure like a pro (the 3-tank protocol)

Fill to first click at the same pump, record the odometer (Tank 0).
Drive normally for 2–3 tanks; always refill to first click at the same pump.
MPG = total miles ÷ total gallons across all tanks — averaging kills pump-click noise.
Cross-check with the trip computer; a persistent >10% gap means the computer needs calibration — or the car needs service.
Log with an OBD-II dongle for per-trip MPG if you want to isolate commute vs. highway behavior.

Practical Tips

•Lowering helps more than stiffening
•Brake bias follows transfer
•Measure CG for real numbers

Common Mistakes

Mixing units (inches with mm, psi with kPa)

Convert every input to the unit shown on its field before calculating.

Trusting a single output blindly

Cross-check with the worked example and, when it matters, a dyno or datalog.

Assumptions

This calculator makes the following assumptions to provide estimates:

Steady-state model: Formulas assume stabilized conditions; transients, heat soak and traction limits are excluded.

Standard factors: Empirical constants (BSFC, VE, drivetrain loss) use typical values — your combination may differ.

Limitations

Be aware of these limitations when using this calculator:

Estimate, not measurement: Predictions carry real-world scatter of roughly ±5–15% depending on the model.

No transient effects: Shift time, wheelspin, spool lag and heat soak are not modeled here.

Frequently Asked Questions

Answers to common questions about this calculator.

Why do front brakes wear faster?

Braking transfers ~15-25% of weight forward — fronts do most of the work by physics.

How do I reduce weight transfer?

Lower CG, longer wheelbase, softer initial brake application. Some transfer is unavoidable.

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Related Guides

Deepen your understanding with these educational resources.

Automotive Guides

Build planning, measurement protocol and validation how-tos

Glossary

Technical terms used in mortgage calculations explained in plain language.

MPG: Miles per gallon. Distance travelled per gallon of fuel; higher is better. US gallon = 3.785 L.
L/100 km: Litres consumed per 100 kilometres; lower is better. Standard metric efficiency unit.
MPGe: Miles per gallon-equivalent. EV metric: miles travelled on 33.7 kWh (energy of 1 gal of gasoline).
CAFE: Corporate Average Fuel Economy — US fleet-average efficiency standard enforced by NHTSA.
Rolling resistance: Energy lost deforming tires as they roll. Low-pressure or wide tires raise it.
Aerodynamic drag: Air resistance growing with the square of speed — why highway MPG falls fast above 60 mph.
Hypermiling: Driving techniques (coasting, steady speed, anticipation) that maximise real-world MPG.
OBD-II: On-board diagnostics port. Scanners and dongles read live MPG, fuel trim and fault codes.
Load transfer: Dynamic axle-load shift under acceleration (often mis-called weight transfer — mass does not move, load does).

Authoritative References

Trusted sources and standards referenced by this calculator.

EPA — FuelEconomy.gov DOE — Fuel-Efficient Driving Tips NHTSA — Driving Safety & Efficiency SAE International — Fuel Economy Standards Consumer Reports — MPG Truth IRS — Standard Mileage Rates

Applicable Standards

EPA Fuel Economy Testing (40 CFR Part 600)CAFE — Corporate Average Fuel Economy Standards (NHTSA)WLTP — Worldwide Harmonised Light Vehicle Test ProcedureSAE J1321 / J1711 — Fuel consumption test proceduresISO 2575 — Road vehicles symbols & efficiency markings

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Page Information

Last Updated:

2026-09-27

Version:

2.0.0

References:

License:

Free to use for educational and professional purposes.