Stone calculator
Stone block weight calculator
Type the block's size and pick the stone: the weight shows at once, in tonnes or pounds.
Typical 2.7, range 2.6–2.8 t/m³
The picture keeps one stone; the stone you pick sets only the density. Your stone's EN 1936 or ASTM C97 test gives the real value.
Weight
27.70t
61,072 lb · 30.54 short tons
Volume
10.260m³
362.3 ft³
See it with your own blocks and slabs.
Book a demoHow it's calculated
weight = length × height × width × density
Multiply the three sides to get the volume, then multiply by the stone's density. One cubic metre at 2.7 t/m³ weighs 2.7 tonnes.
Example
A marble block of 3.0 × 1.8 × 1.9 m is 10.26 m³. At 2.7 t/m³ it weighs 10.26 × 2.7 = 27.7 t, about 61,070 lb or 30.5 short tons.
Density of marble, granite and other stones
Typical values with their usual range; the published values are in the public sources below. 1,000 kg/m³ = 1 t/m³ = 1 g/cm³. The real value is your stone's EN 1936 or ASTM C97 test.
| Stone | Typical kg/m³ | Range kg/m³ | Typical lb/ft³ |
|---|---|---|---|
| Marble | 2,700 | 2,600–2,800 | 169 |
| Granite | 2,700 | 2,600–2,800 | 169 |
| Black granite | 3,000 | 2,900–3,100 | 187 |
| Travertine | 2,500 | 2,300–2,600 | 156 |
| Limestone | 2,500 | 2,200–2,700 | 156 |
| Quartzite | 2,650 | 2,600–2,700 | 165 |
| Onyx | 2,700 | 2,600–2,800 | 169 |
| Slate | 2,750 | 2,700–2,800 | 172 |
| Sandstone | 2,300 | 2,000–2,600 | 144 |
| Basalt | 2,900 | 2,800–3,000 | 181 |
| Gneiss | 2,700 | 2,600–2,900 | 169 |
| Dolomite | 2,850 | 2,800–2,900 | 178 |
| Porphyry | 2,650 | 2,600–2,700 | 165 |
| Calcite | 2,710 | 2,710 | 169 |
| Quartz | 2,650 | 2,650 | 165 |
| Amethyst | 2,650 | 2,650 | 165 |
Sources
- chemeurope.com: Common rock densities · granite, marble, limestone, quartzite, slate, basalt, gneiss, and dolomite
- LibreTexts: Density of Rocks and Soils · sandstone, limestone, marble, slate, and gneiss
- Wikipedia: Granite · granite: 2,650–2,750 kg/m³
- Mandarin Stone, Calacatta (PDF) · marble: 2,680 kg/m³ (EN 1936)
- Mandarin Stone, Silver Travertine (PDF) · travertine: 2,470 kg/m³ (EN 1936)
- Marshalls, Silver Travertine CF 35 (PDF) · travertine: 2,370–2,510 kg/m³ (EN 1936)
- Nero Assoluto Zimbabwe (PDF) · black granite: 3,066–3,078 kg/m³ (EN 1936)
- Marshalls, Trentino Porphyry (PDF) · porphyry: 2,704 kg/m³ (EN 1936)
- Marshalls, Imperial Red Porphyry (PDF) · porphyry: 2,595 kg/m³ (EN 1936)
- Wikipedia: Calcite · calcite and onyx: 2,710 kg/m³
- Wikipedia: Dolomite (mineral) · dolomite: 2,840–2,860 kg/m³
- Wikipedia: Quartz · quartz: 2,650 kg/m³
- Wikipedia: Amethyst · amethyst: 2,650 kg/m³
With Noria Strata, every block keeps its size, weight and photos, from the quarry face to the buyer.
Book a demoQuestions
About 2.7 tonnes per cubic metre. A typical export block of 3.0 × 1.8 × 1.9 m, 10.26 m³, weighs about 27.7 tonnes. Multiply the volume in m³ by the density in t/m³.
Measure the length, height and width, multiply them to get the volume, then multiply by the stone's density. In metres and t/m³ the answer is in tonnes. In feet, use lb/ft³: 2.7 t/m³ is about 169 lb/ft³.
Most granites are 2.6 to 2.8 t/m³, and 2.7 is a good working value. Black granites, which are gabbros or diabases, reach 2.9 to 3.1 t/m³. The stone's EN 1936 or ASTM C97 test gives its exact figure.
A quarry block is never a perfect box, density changes from one bench to the next, and wet stone weighs more. Use the result to plan, and weigh the block before it is loaded.
About 2,700 kg/m³ (2.7 t/m³, 169 lb/ft³). Most marbles are 2,600 to 2,800 kg/m³: a Calacatta tested to EN 1936 gives 2,680, and dolomitic marbles reach about 2,850. One cubic metre of marble weighs about 2.7 tonnes.
At 2,700 kg/m³, about 54 kg per m² at 2 cm and 81 kg per m² at 3 cm (11 and 17 lb/ft²). A slab of 3.0 × 1.8 m at 3 cm weighs about 437 kg (964 lb).
