What is the density of stainless steel 304?

Grade 304 (the most common austenitic stainless) has a density of 7930 kg/m³ (0.286 lb/in³). This is slightly higher than carbon steel (7850 kg/m³) due to the chromium and nickel alloying elements.

How is the stainless steel sheet weight calculated?

The formula is: Weight = Length × Width × Thickness × Density. All dimensions are converted to meters first, giving a volume in m³. Multiplying by the grade density (kg/m³) gives the weight in kilograms.

What is the difference in weight between 304 and 316 stainless steel?

Grade 316 has a density of 8000 kg/m³ vs 7930 kg/m³ for 304, a difference of about 0.9%. For most practical calculations this is negligible, but this calculator uses the correct per-grade density for precision.

Why is 2205 duplex lighter than 304?

Duplex 2205 has a density of about 7805 kg/m³, slightly lower than austenitic grades. Despite being lighter, it offers roughly twice the yield strength of 304, making it highly efficient for structural use.

Can I calculate weight for multiple sheets at once?

Yes. Set the Quantity field to the number of sheets and the calculator multiplies the per-sheet weight by that number, displaying both total weight and individual sheet weight.

Does this calculator support imperial units?

Yes. You can enter length and width in inches or feet, and thickness in inches. The calculator converts all values to meters internally before applying the density formula.

How accurate are the results?

Results are theoretical weights based on nominal dimensions and standard grade densities per ASTM and EN specifications. Actual weights may vary slightly due to manufacturing tolerances (typically ±3–5%).

Stainless Steel Sheet Weight Calculator

Name: Stainless Steel Sheet Weight Calculator
Availability: InStock
Author: Nham Vu

Enter length, width, and thickness of a stainless steel sheet, pick a grade, and get the exact weight in kg and lbs instantly.

Sheet Dimensions

Length

Width

Thickness

Stainless Steel Grade

Quantity (sheets)

Formula Reference

Weight (kg) = L (m) × W (m) × T (m) × ρ (kg/m³)

L = length, W = width, T = thickness, ρ = grade density. All dimensions must be converted to meters first.

Enter dimensions on the left and click Calculate.

Stainless Steel Grade Densities

Grade	Type	kg/m³	lb/in³
304 / 304L	Austenitic	7930	0.286
316	Austenitic	8000	0.289
316L	Austenitic (LC)	7980	0.288
321	Ti-stabilized	7900	0.285
310 / 310S	High-heat	7920	0.286
430	Ferritic	7700	0.278
410	Martensitic	7650	0.276
2205 Duplex	Duplex	7805	0.282
2507 S. Duplex	Super Duplex	7800	0.282

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Summary

Enter length, width, and thickness of a stainless steel sheet, pick a grade, and get the exact weight in kg and lbs instantly.

How it works

Enter the sheet length in your preferred unit (mm, cm, m, in, or ft).
Enter the sheet width using the same or a different unit.
Enter the sheet thickness in mm, cm, or inches.
Select the stainless steel grade — the certified density is applied automatically.
Optionally set a quantity to calculate the total weight for multiple sheets.
Click Calculate Weight to see results in kg and lbs with a full dimensional breakdown.

Use cases

Estimating stainless steel sheet weight for fabrication and procurement.
Calculating freight and shipping costs for stainless plate stock orders.
Comparing grade choices (e.g., 304 vs 316L) by weight and cost per kg.
Preparing bills of materials (BOM) for food-grade or marine equipment.
Checking load capacity for stainless steel structural panels.
Verifying sheet weight against supplier mill certificates for quality assurance.
Quick estimates for architectural cladding and facade projects.
Batch weight calculations for cut-to-size sheet orders.

Frequently Asked Questions

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Last updated: 2026-05-23 · Reviewed by Nham Vu