Before you ask for a price, it helps to know three numbers: how much area you need to cover, how heavy the stone will be, and how much fits in one container if you are importing. These calculators give you a quick estimate of each.
Every result is an estimate. Real weights change with the exact stone and lot, so we confirm the final numbers in our written quote. Each default value below can be changed, and we show where it comes from.
Area And Tile Calculator
Enter the room or patio size. We add a wastage allowance for cutting and breakage, then work out how many tiles you need.
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The 10% wastage is an example value. Straight layouts usually need less and diagonal layouts more. Change it to suit your layout.
Stone Weight Calculator
Weight matters for transport, lifting and the floor or wall that will carry the stone. Pick the stone type to load a typical density, or type your own.
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Typical densities: sandstone 2,300 and granite 2,500 to 3,000 kg per cubic metre (Archweb specific weight table), limestone 2,700 to 2,800 and marble 2,600 to 2,800 (Engineering ToolBox). Checked 11 November 2026.
Container Load Calculator
Stone is heavy, so a container usually fills up by weight long before it fills up by space. This estimate shows roughly how much stone area fits in one container at your thickness.
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The 28,300 kg payload is the maximum Maersk lists for a 20 ft standard steel container (Maersk cargo weight limits, checked 11 November 2026). Road and port limits in many countries are lower, so the real figure is often less. The 1,500 kg for crates and pallets is an example value. Ask us for the limit that applies to your port.
How To Use These Numbers
- For a price. Send us the area with wastage, the thickness and the stone. That is all we need for a first quote.
- For transport in India. Use the weight to check the truck size and the lifting you will need on site.
- For export. Use the container estimate to plan how many containers your order needs. Our guide on how to order natural stone from India explains the rest of the process.
- For sizes. Our Kota stone sizes guide lists the common tile and slab sizes.
Stone Calculator FAQ
How Accurate Are These Calculators?
They give a good first estimate. Real density changes from lot to lot, and tiles are cut with joints and trims, so we confirm the final numbers in writing.
Why Does The Container Fill Up By Weight?
Stone weighs about 2.3 to 2.8 tonnes per cubic metre. A container reaches its weight limit with only a small part of its space used.
How Much Wastage Should I Add?
It depends on the layout and the number of cuts. Ask your installer, then change the wastage value to match.