What is the density of stainless steel plate (Grade 304)?

Grade 304 stainless steel has a density of 7,930 kg/m³ (0.286 lb/in³). This is slightly higher than carbon steel (7,850 kg/m³) due to the chromium and nickel content.

How is stainless steel plate weight calculated?

The formula is: Weight = Length × Width × Thickness × Density. All dimensions are converted to meters first to give a volume in m³, which is then multiplied by the grade density (kg/m³) to yield kilograms.

What is the difference between a plate and a sheet?

In industry, "plate" typically refers to flat stainless steel stock thicker than 6 mm (¼ in), while "sheet" covers thinner gauges. The weight formula is identical — only the thickness value differs.

How much does a 1 m × 1 m × 10 mm stainless steel plate weigh?

Using Grade 304 (7,930 kg/m³): 1 × 1 × 0.01 × 7930 = 79.3 kg (approximately 174.9 lb).

Can I calculate weight for multiple plates at once?

Yes. Enter the number of plates in the Quantity field. The calculator displays both the per-plate weight and the total weight for the batch.

Does this calculator support imperial units?

Yes. You can enter length and width in inches or feet, and thickness in inches. All values are converted to meters internally before the density formula is applied.

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 by ±3–5% due to manufacturing tolerances.

Stainless Steel Plate Weight Calculator

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

Enter plate length, width, and thickness, choose a grade, and get the exact weight in kg and lbs instantly.

Plate Dimensions

Length

Width

Thickness

Stainless Steel Grade

Quantity (plates)

Formula Reference

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

L = length, W = width, T = thickness, ρ = grade density (default 7,930 kg/m³ for Grade 304). All dimensions must be in meters before calculation.

Enter plate 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 plate length, width, and thickness, choose a grade, and get the exact weight in kg and lbs instantly.

How it works

Enter the plate length in your preferred unit (mm, cm, m, in, or ft).
Enter the plate width in the same or a different unit.
Enter the plate 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 plates.
Click Calculate Weight to see results in kg and lbs with a full breakdown.

Use cases

Estimating stainless steel plate weight for fabrication quotes and procurement.
Calculating freight and logistics costs for plate stock shipments.
Comparing grade choices (e.g., 304 vs 316L) by weight for structural applications.
Preparing bills of materials (BOM) for industrial and marine equipment.
Verifying plate weight against supplier mill certificates for QA.
Quick estimates for architectural cladding and facade panels.
Batch weight calculations for cut-to-size plate orders.
Checking load capacity in stainless steel structural assemblies.

Frequently Asked Questions

Related tools

Stainless Steel Sheet Weight Stainless Steel Flat Bar Weight Stainless Steel Round Bar Weight

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