Pick the grade and shape, enter the dimensions in millimetres. Theoretical weight per piece and in total is calculated instantly.
Weight is cross-section area times length times density. With dimensions in mm and density in g/cm³, the result in kg is:
kg = cross-section (mm²) × length (mm) × density (g/cm³) ÷ 1,000,000
Example: a 1000 × 2000 mm, 1 mm thick 304 sheet gives 1 × 1000 × 2000 × 7.90 ÷ 1,000,000 = 15.8 kg.
| Grade | EN number | Density |
|---|---|---|
| 304 | 1.4301 | 7.90 g/cm³ |
| 304L | 1.4307 | 7.90 g/cm³ |
| 316 | 1.4401 | 8.00 g/cm³ |
| 316L | 1.4404 | 8.00 g/cm³ |
| 321 | 1.4541 | 7.90 g/cm³ |
| 310S | 1.4845 | 7.90 g/cm³ |
| 430 | 1.4016 | 7.70 g/cm³ |
Density values are the nominal figures from EN 10088-1. The value on a mill certificate may differ slightly.
This tool works with nominal dimensions and nominal density. Thickness, width and length tolerances for cold rolled stainless sheet and strip are defined in the EN ISO 9445 series; a thickness that sits inside its tolerance band can move the weighed weight a few percent away from the theoretical figure. Corner radii, surface finish and cutting allowance also add to the difference. Treat the result as an estimate for order and freight planning, and rely on the delivery note for the exact weighed weight.
With a nominal density of 7.90 g/cm³ for 304, 1 m² at 1 mm thickness weighs about 7.9 kg. Weight scales with thickness: 15.8 kg at 2 mm, 23.7 kg at 3 mm.
A small one. Under EN 10088-1 the nominal density is 7.90 g/cm³ for 304 and 8.00 g/cm³ for 316L, so the same size in 316L is about 1.3 percent heavier.
430 is a ferritic grade with a nominal density of 7.70 g/cm³. For the same size it is about 2.5 percent lighter than austenitic 304.
The cross-section is π × (outside diameter − wall) × wall, multiplied by length and density. For example, Ø48.3 × 2 mm 304 pipe is about 2.30 kg per metre.
First find the weight per metre as thickness × width × 1 m × density, then divide the coil weight by it. The coil / strip option in the tool does this for you.
No, it is theoretical. Thickness and size tolerances, corner radii, surface finish and cutting allowance can move the real weight by a few percent. The exact weight is the weighed weight at dispatch.
Write your size, grade and quantity in the quote form and we will get back to you.
Go to the quote form