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MS Plate Weight Calculator

Updated 8 November 2026Checked against IS 2062:2011, IS 1730How we check

Use this free MS plate weight calculator to find the weight of any steel plate in kg. Choose the material and shape, enter the size, and get the weight of one plate and the total weight instantly. It works for mild steel, stainless steel 304 and 316, GI, aluminium, copper and brass, including round plates and rings.

Plate Weight Calculator

All results are in kg.

Material

Shape

Width

Outer diameter

Hole diameter (0 if none)

Thickness

Length

Quantity (pieces)

Rate per kg (₹, optional)

Measure length, width and thickness (t).

Measure outer diameter, hole diameter and thickness.

–Weight of 1 plate

–Total weight

–Weight per m²

–Area of 1 plate

–Total in tonnes

–Total in pounds

–Paint / galvanizing area

–Estimated cost

Download MS Plate Weight Chart (PDF)Free, printable, A4

MS Plate Weight Chart

Standard mild steel plate weights by thickness (density 7.85 g/cm³). The right-hand columns show the weight of one full plate in the most common Indian sizes.

Thickness	Weight per m²	1250 × 2500 mm	8 × 4 ft (1220 × 2440 mm)	1500 × 6300 mm
1 mm	7.85 kg	24.53 kg	23.37 kg	74.18 kg
1.2 mm	9.42 kg	29.44 kg	28.04 kg	89.02 kg
1.6 mm	12.56 kg	39.25 kg	37.39 kg	118.69 kg
2 mm	15.70 kg	49.06 kg	46.74 kg	148.36 kg
2.5 mm	19.62 kg	61.33 kg	58.42 kg	185.46 kg
3 mm	23.55 kg	73.59 kg	70.10 kg	222.55 kg
4 mm	31.40 kg	98.12 kg	93.47 kg	296.73 kg
5 mm	39.25 kg	122.66 kg	116.84 kg	370.91 kg
6 mm	47.10 kg	147.19 kg	140.21 kg	445.09 kg
8 mm	62.80 kg	196.25 kg	186.94 kg	593.46 kg
10 mm	78.50 kg	245.31 kg	233.68 kg	741.82 kg
12 mm	94.20 kg	294.37 kg	280.41 kg	890.19 kg
16 mm	125.60 kg	392.50 kg	373.89 kg	1,186.92 kg
20 mm	157.00 kg	490.62 kg	467.36 kg	1,483.65 kg
25 mm	196.25 kg	613.28 kg	584.20 kg	1,854.56 kg
32 mm	251.20 kg	785.00 kg	747.77 kg	2,373.84 kg
40 mm	314.00 kg	981.25 kg	934.72 kg	2,967.30 kg
50 mm	392.50 kg	1,226.56 kg	1,168.39 kg	3,709.12 kg

Theoretical weights. Actual mill weight can differ slightly because of thickness tolerance.

Plate Weight Formula

Weight (kg) = Length (m) × Width (m) × Thickness (mm) × 7.85

The 7.85 is the density of steel. For other metals use their density instead: 7.93 for SS 304, 2.70 for aluminium, 8.96 for copper.

Example: an MS plate of 2500 × 1250 × 10 mm weighs 2.5 × 1.25 × 10 × 7.85 = 245.31 kg.

For a round plate, use the area of a circle:

Weight (kg) = 3.1416 × (D ÷ 2)² × Thickness (mm) × 7.85 (D in meters)

For a ring, calculate the full disc and subtract the weight of the hole.

Plate Weight by Thickness

Why Actual Weight Can Differ

Steel is rolled to a size range, not an exact size, so the weight on the weighbridge is rarely exactly the calculated weight.

TMT bars (IS 1786): the mass per meter may vary by about ±7% for bars up to 10 mm, ±5% for 12–16 mm and ±3% for bars above 16 mm.
Plates and sheets (IS 1852 / IS 2062): thickness has a rolling tolerance, so a "10 mm" plate can be slightly thicker or thinner.
Pipes and sections: corner radius, weld seam, zinc coating and end finish (plain or screwed) change the weight a little.

Use the calculated (nominal) weight for estimates and quotations, and the actual weighbridge weight for billing.

Frequently Asked Questions

How do I calculate MS plate weight in kg?

Multiply length (m) × width (m) × thickness (mm) × 7.85. A 1 m × 1 m × 6 mm MS plate weighs 1 × 1 × 6 × 7.85 = 47.1 kg.

What is the weight of a 6 mm MS plate per square meter?

A 6 mm MS plate weighs 47.10 kg per square meter. A full 1250 × 2500 mm plate of 6 mm weighs about 147.19 kg.

What is the weight of a 10 mm MS plate?

A 10 mm MS plate weighs 78.50 kg per square meter. A 1250 × 2500 mm plate weighs 245.31 kg and a 1500 × 6300 mm plate weighs 741.83 kg.

What is the weight of 12 mm and 16 mm MS plate?

A 12 mm MS plate weighs 94.20 kg/m² and a 16 mm MS plate weighs 125.60 kg/m². Multiply by the plate area in m² to get the weight of your plate.

What is the weight of an 8 × 4 MS plate?

An 8 × 4 ft plate (1220 × 2440 mm) weighs 23.37 kg for every mm of thickness. So 5 mm weighs about 116.84 kg and 10 mm about 233.68 kg.

Is a stainless steel plate heavier than an MS plate?

Slightly. SS 304 has a density of about 7.93 g/cm³ against 7.85 for mild steel, so an SS plate is about 1% heavier for the same size.

How do I calculate aluminium plate weight?

Use length (m) × width (m) × thickness (mm) × 2.70. Aluminium weighs about one third as much as steel.

How do I calculate base plate weight?

Use the rectangle option with the base plate length, width and thickness. Small bolt holes are usually ignored. For a round base plate or a plate with one large centre hole, choose "Round plate or ring".