Axle Load Distribution Calculator
Allocate weighed axle loads across individual tires for single and dual axles. Get load per tire in kg and lb and the front/rear split.
Allocate entered loads across tires.
Axle Load Distribution Calculator: Tire Size Inputs
Compare two tire sizes here. Use the formulas and reference tables below for this tool's specific calculation.
How Axle Load Distribution Calculator Works?
The Axle Load Distribution Calculator works by dividing each weighed axle load by the number of tires on that axle. The tool uses 4 steps.
Weigh each axle
Weigh the loaded vehicle at a public scale, for example 1,250 kg front and 1,400 kg rear (2,756 lb and 3,086 lb).
Enter tire counts
Type 2 tires per single axle or 4 per dual axle.
Add a side bias
Enter an optional left/right split when the corner weights are known, for example 52/48.
Read load per tire
The calculator returns 625 kg (1,378 lb) per front tire and 700 kg (1,543 lb) per rear tire.
Axle Load Distribution Calculator Formula
The Axle Load Distribution Calculator formula is L_tire = W_axle ÷ n_tires, or W_axle × side share with a known side bias.
L_tire = W_axle ÷ nL_heavy = W_axle × s ÷ (n ÷ 2)Share = W_axle ÷ W_total × 100- W_axle
- Weighed axle load (kg)
- n
- Tires on the axle
- s
- Heavier side share (for example 0.52)
Worked example
A 1,600 kg front and 2,400 kg rear (dual) load gives 800 kg (1,764 lb) per front tire and 600 kg (1,323 lb) per rear dual tire. With a 52/48 side bias, the heavy rear side carries 624 kg per tire.
Axle Load Distribution Calculator Conversion Table
The Axle Load Distribution Calculator conversion table splits 6 front and rear axle loads into load per tire for single and dual rear axles.
| Front / rear axle | Per front tire | Per rear tire (single) | Per rear tire (dual) | Front / rear split |
|---|---|---|---|---|
| 1,000 / 900 kg | 500 kg (1,102 lb) | 450 kg (992 lb) | 225 kg (dual) | 53% / 47% |
| 1,100 / 1,050 kg | 550 kg (1,213 lb) | 525 kg (1,157 lb) | 262 kg (dual) | 51% / 49% |
| 1,250 / 1,400 kg | 625 kg (1,378 lb) | 700 kg (1,543 lb) | 350 kg (dual) | 47% / 53% |
| 1,300 / 1,700 kg | 650 kg (1,433 lb) | 850 kg (1,874 lb) | 425 kg (dual) | 43% / 57% |
| 1,500 / 1,900 kg | 750 kg (1,653 lb) | 950 kg (2,094 lb) | 475 kg (dual) | 44% / 56% |
| 1,600 / 2,400 kg | 800 kg (1,764 lb) | 1,200 kg (2,646 lb) | 600 kg (dual) | 40% / 60% |
What is Axle Load Distribution Calculator?
An Axle Load Distribution Calculator is a tool that turns weighed axle loads into the load each tire carries. Tire capacity checks need load per tire, while scales report load per axle.
Vehicles rarely split weight evenly side to side. Fuel tanks, batteries and cargo placement shift 2% to 5% of the axle load to one side.
The calculator feeds the Tire Capacity Margin Calculator with the heaviest tire's load.
What are the uses of Axle Load Distribution Calculator?
There are 4 main uses of the Axle Load Distribution Calculator, including motorhome weighing and towing setups.
Motorhome weighing
Turn scale tickets into load per tire.
Towing setups
See how tongue weight raises rear tire load.
Overland builds
Check corner loads after adding racks and water tanks.
Pressure setting
Set pressure from the load on each tire.
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