TMT Weight Calculator

Instant TMT bar weight per metre, per piece & total MT estimation for civil projects.

Per Metre Weight Bundle Weight Total MT Cost Estimate

Calculate TMT Bar Weight

TMT Bar Diameter (mm)

Length / Piece (metres)

Number of Pieces

Weight / Metre

0.888 kg

Total Weight

0.00 MT

Est. Cost

₹0

Formula: D² ÷ 162 × Length × Pieces | Live Rate: Loading...

TMT Bar Weight Chart — All Sizes

Standard TMT bar weight per metre as per IS 1786:2008 (BIS). Density = 7850 kg/m³. Formula: W = D² ÷ 162 (kg/m)

Diameter	Wt/Metre (kg)	Wt/12m Piece (kg)	Pieces/Bundle (standard)	Bundle Weight (kg)	Common Use
8 mm	0.395	4.74	100	474	Stirrups, slabs, lintels
10 mm	0.617	7.40	70	518	Slabs, stirrups, beams
12 mm	0.888	10.66	50	533	Columns, slabs, footings
16 mm	1.580	18.96	30	569	Columns, beams, footings
20 mm	2.469	29.63	20	593	Large columns, heavy beams
25 mm	3.858	46.30	12	556	Heavy foundations, bridges
32 mm	6.313	75.76	7	530	Industrial structures, bridges

How to Calculate TMT Bar Weight

The D²/162 Formula

The standard formula for calculating TMT bar weight per metre is:

                            Weight (kg/m) = D² ÷ 162
                        

Where D is the diameter of the TMT bar in millimetres. This formula is derived from the standard steel density of 7850 kg/m³ and is accepted universally in Indian civil engineering.

Example Calculation

For 12mm TMT bars, 100 pieces, 12m length each:

Weight/m = 12² ÷ 162 = 0.888 kg/m
Weight/piece = 0.888 × 12 = 10.66 kg
Total = 10.66 × 100 = 1,066 kg = 1.07 MT
Est. Cost = 1.07 × ₹60,000 = ₹64,200

Prices vary by brand (Tata Tiscon, JSW, SAIL etc.) and location. Use Sariya Bazar for live rates.

Pro Tip: For a standard G+1 house (1000 sq.ft per floor), you typically need 4–5 MT of TMT bars. Use our AI Construction Hub to get an exact estimate based on your plot dimensions.