Dump Truck Load Calculator

Calculate how many dump truck trips you need with both volume and weight limit checks.

How It Works

This calculator helps you determine how many dump truck trips you need to haul excavated material, with a critical safety feature: it checks both volume and weight limits to prevent overloading.

Volume vs Weight Limiting

Every truck has two limits: how much it can hold by volume (cubic meters or cubic yards) and how much it can carry by weight (kilograms or pounds). For light materials like dry sand or topsoil, the truck bed fills up before reaching the weight limit — volume governs. For heavy materials like wet clay or rock, the truck reaches its weight limit before the bed is full — weight governs.

Why This Matters

Many contractors estimate trips by volume alone, which works for light materials. But for heavy soils, this leads to overloaded trucks, which damages equipment, risks fines, and creates safety hazards. This calculator makes the weight check automatic.

How to Calculate

  1. Volume trips: Loose volume ÷ Truck volume capacity (rounded up)
  2. Weight trips: (Loose volume × Loose density) ÷ Truck weight capacity (rounded up)
  3. Governing trips: The higher of volume trips and weight trips

Common Truck Sizes

Truck TypeVolumeWeight Limit
Single Axle (US)7.6 m³ (10 yd³)10,886 kg (24,000 lb)
Tandem Axle (US)10.7 m³ (14 yd³)14,515 kg (32,000 lb)
Tri-Axle (US)13.8 m³ (18 yd³)19,051 kg (42,000 lb)
Super Dump (US)19.1 m³ (25 yd³)24,040 kg (53,000 lb)

Frequently Asked Questions

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Dump Truck Load Calculator | ConstructCalculators