Free Construction Calculators & Tools/Excavation Volume Calculator

Excavation Volume Calculator

Calculate excavation volumes for construction projects. Account for soil swell factors, side slopes, and truck loads. Includes bank volume, loose volume calculations, and backfill estimates for earthwork planning.

Excavation Dimensions
Soil Type & Transport

Swell factor: 1.3x - soil expands when excavated

Calculate material for partial backfill after construction

Enter excavation dimensions and click Calculate to see results

Notes:

  • Bank volume is the in-situ (undisturbed) soil volume
  • Loose volume accounts for soil expansion when excavated
  • Swell factors vary by soil type (15-50% typical)
  • Actual volumes may vary based on site conditions
  • Consider access routes when planning truck sizes
Send This Calculation to Arkan
Share your inputs and results with our team, along with your contact details, if you'd like to discuss them or see how Arkan handles this work.

ESTIMATION NOTICE

This calculator provides APPROXIMATE QUANTITIES for budgeting and planning purposes.

Please note:

• Results include standard wastage factors but actual waste may vary based on site conditions, workmanship, and material quality.

About This Calculator

The Excavation Volume Calculator helps contractors and quantity surveyors estimate earthwork volumes for construction projects across the UAE and Gulf. Calculate bank volumes, loose volumes after swell, and the number of truck loads required for spoil removal. Essential for accurate tender pricing, earthwork planning, and coordinating with excavation subcontractors on infrastructure, building, and civil engineering projects.

When to Use This Calculator

  • Estimating excavation costs for tender submissions
  • Calculating truck loads for spoil disposal planning
  • Determining backfill quantities after foundation works
  • Planning earthwork schedules for site preparation
  • Verifying subcontractor excavation claims

How to Use This Calculator

1

Enter Excavation Dimensions

Input length, width, and depth of the excavation area in meters.

2

Select Soil Type

Choose soil type to apply correct swell factor: sand (10-15%), clay (20-30%), rock (40-60%).

3

Specify Side Slopes

Enter slope ratio if excavation has sloped sides (e.g., 1:1 for 45° slope).

4

Enter Truck Capacity

Specify truck size (typically 10-15m³ for Gulf region tipper trucks).

5

Review Results

Get bank volume, loose volume, truck loads, and backfill quantities.

Typical Scenarios in UAE & Gulf Projects

Tower Foundation Excavation in Dubai

A tower basement needs a 50 m × 40 m × 12 m deep excavation in sand. The calculator gives 24,000 m³ bank volume and 26,400 m³ loose volume (10% swell for sand), which is 1,761 loads in 15 m³ trucks to an approved disposal site.

Infrastructure Trench in Abu Dhabi

A 2 km utility trench, 2 m wide × 1.5 m deep, in mixed soil. The calculator gives 6,000 m³ bank volume and 7,200 m³ loose volume (20% swell), 480 loads of 15 m³. With 80% of the trench backfilled (4,800 m³ compacted), reusing the excavated soil takes about 5,333 bank m³, leaving about 800 loose m³ of spoil to remove.

Frequently Asked Questions

Swell factor (increase in volume when excavated): Sand/gravel 10-15%, ordinary soil 20-25%, clay 25-35%, rock 40-65%. The calculator uses 10% for sand, 12% for gravel, 20% for mixed soil, 25% for sandy clay and topsoil, 30% for clay and 50% for blasted rock; use the values from your soil report where available. Swell factor is crucial for accurate truck load calculations and disposal costs.

For excavations with sloped sides: V = D × [LW + (L+W)×D×S + 4/3×D²×S²], where D=depth, L=length, W=width, S=slope ratio. Example: 10 m × 10 m base, 3 m deep, 1:1 side slopes (16 m × 16 m at the top) = 300 m³ base prism + 216 m³ for the slopes = 516 m³ total, the same as the calculator's trapezoidal (prismoidal) result.

Standard dump trucks in UAE/Saudi: 10m³ for site work, 15m³ for main haulage, 20-25m³ for long-distance disposal. Articulated dump trucks (ADT) range 25-40m³ for large earthwork projects. Always check site access restrictions.

Take Your Calculations Further

This calculator reflects the logic built into Arkan's construction management platform.

Last Updated: January 2026

Standards Reference: Volume calculations per AASHTO and BS 6031 earthwork standards

Related Tools

Concrete Volume Calculator

Calculate concrete volume and materials

Aggregate & Gravel Calculator

Gravel, stone & sub-base quantities

Need More Than Calculators?

Arkan brings all your construction management together: BOQ tracking, payment certificates, document management, scheduling, and more. All integrated. All in one place.