Tonnage Calculator

This Calculator will help you to estimate the amount of aggregate required for your job.

Please note that densities will vary between different loads, but the default values assigned for the various aggregates are good standard "rules of thumb" for estimating.

Imperial Metric
Step 1: Select your aggregate type.
-- Select an Aggregate -- Builders Mix Concrete Aggregate 15mm Concrete Aggregate 20mm Concrete Aggregate 40mm River Rounds Cribwall Mix ---------------------------------------------- Asphalt Sand Washed Asphalt Sand Concrete Sand Dune Sand Wairarapa Sand Mortar Sand Coarse Beach Sand Bedding Sand Fill Sand ---------------------------------------------- WCC 14/5mm Drainage WCC 20/5mm Drainage WCC 40/5mm Drainage Filter Metal 100-40mm Filter Metal 75-20mm Filter Metal 40-20mm Filter Metal F2 Drainage Mix 20mm down Drainage Mix 10mm down 8mm Down Grit ---------------------------------------------- 100mm Subbase 65mm Subbase 65mm Subbase - Grey 40mm Basecourse Domestic 40mm Basecourse Standard 40mm Basecourse TNZ M4 20mm Topcourse Domestic 20mm Topcourse Standard 40mm Lime Stabilised Basecourse 20mm Lime Stabilised Topcourse ---------------------------------------------- Crushed Chips 20-16mm Crushed Chips 16-12mm Crushed Chips 12-8mm Crushed Chips 8-5mm ---------------------------------------------- Quarry Forkings Hard Fill Split of all sizes
Density (tonnes/cubic metre):
Step 2: Enter the width, length and depth of your job.
Width (Metres):
Length (Metres):
Depth:		Centimetres	Metres
Step 3: Calculate your total volume and weight.