Wheel and Tire Package Weight Calculator
Calculate wheel and tire assembly weight per corner and set. Compare packages in kg and lb and estimate effective rotating mass.
Compare complete assembly weights.
Wheel and Tire Package Weight Calculator: Tire Size Inputs
Compare two tire sizes here. Use the formulas and reference tables below for this tool's specific calculation.
How Wheel and Tire Package Weight Calculator Works?
The Wheel and Tire Package Weight Calculator works by adding wheel weight, tire weight and optional hardware for each corner and multiplying by 4. The tool uses 4 steps.
Enter wheel weight
Type the wheel weight, for example 10.5 kg (23.1 lb).
Enter tire weight
Type the tire weight, for example 10.0 kg (22.0 lb).
Add hardware
Type TPMS sensor, balance weights and spacer weights when known.
Read totals
The calculator returns 20.5 kg (45.2 lb) per corner, 82.0 kg (181 lb) per set and an effective rotating mass estimate.
Wheel and Tire Package Weight Calculator Formula
The Wheel and Tire Package Weight Calculator formula is W_corner = W_wheel + W_tire + W_hardware, and the set weight is 4 × W_corner.
W_c = W_w + W_t + W_hW_set = 4 × W_cM_eff ≈ W_c + 0.5 × W_t + 0.3 × W_w- W_w, W_t, W_h
- Wheel, tire and hardware weight (kg)
- 0.5, 0.3
- Rotational inertia factors for mass at tire and wheel radius (estimate)
Worked example
A 13.5 kg (29.8 lb) wheel with a 13.0 kg (28.7 lb) tire weighs 26.5 kg (58.4 lb) per corner and 106 kg (234 lb) per set. For acceleration, each corner acts like about 37.0 kg.
Wheel and Tire Package Weight Calculator Conversion Table
The Wheel and Tire Package Weight Calculator conversion table totals 6 wheel and tire packages per corner and per set.
| Package | Per corner | Per set | Effective mass per corner (estimate) |
|---|---|---|---|
| 9.5 kg wheel + 9.0 kg tire | 18.5 kg (40.8 lb) | 74.0 kg (163 lb) | 25.9 kg |
| 10.5 kg wheel + 10.0 kg tire | 20.5 kg (45.2 lb) | 82.0 kg (181 lb) | 28.6 kg |
| 11.5 kg wheel + 11.0 kg tire | 22.5 kg (49.6 lb) | 90.0 kg (198 lb) | 31.4 kg |
| 12.0 kg wheel + 12.5 kg tire | 24.5 kg (54.0 lb) | 98.0 kg (216 lb) | 34.4 kg |
| 13.5 kg wheel + 13.0 kg tire | 26.5 kg (58.4 lb) | 106.0 kg (234 lb) | 37.0 kg |
| 16.0 kg wheel + 25.0 kg tire | 41.0 kg (90.4 lb) | 164.0 kg (362 lb) | 58.3 kg |
What is Wheel and Tire Package Weight Calculator?
A Wheel and Tire Package Weight Calculator is a tool that totals the complete weight of a mounted wheel and tire for one corner and for a set. Package weight is the real unsprung mass the suspension controls.
Rotating mass counts more than static mass during acceleration and braking. Mass at the tire's outer radius adds about half its weight again in effective inertia.
Larger wheels usually weigh more per corner even when the tire is lighter. A Plus-Two package often adds 2 to 4 kg (4 to 9 lb) per corner.
What are the uses of Wheel and Tire Package Weight Calculator?
There are 4 main uses of the Wheel and Tire Package Weight Calculator, including upgrade comparisons and shipping.
Upgrade comparisons
Compare stock and aftermarket packages per corner.
Ride quality forecasts
Spot packages that add unsprung mass.
Shipping and storage
Estimate weight for transport and storage racks.
Motorsport classes
Track weight against class minimums.
Related Tread Wear & Tire Life Tools
View All 134 Subtools →Convert millimeters and thirty-seconds of an inch.
Compare measured remaining tread.
Estimate diameter reduction from tread loss.
Compare tread with a selected replacement threshold.
Calculate measured wear per distance.
Compare tread readings across wheel positions.