TMT Steel Calculator
Steel for a build by area, plus the weight of every bar size from 6 mm to 32 mm.
A planning range, not a quantity. Residential framed construction runs 3.5–4.5 kg of steel per sq ft; a single storey on short spans sits at the bottom and three floors with long spans at the top. Your engineer's bar bending schedule is what you order against.
Steel needed
3.5–4.5 t
3,500–4,500 kg over 1,000 sq ft
At 3.5 kg/sq ft
3,500 kg
Short spans, single storey
At 4.5 kg/sq ft
4,500 kg
Long spans, more floors
Total area
1,000 sq ft
All floors
Bar weights
Weight per metre is d²/162 with the diameter in millimetres — the figure every bar bending schedule in India is priced off. Standard lengths are 12 m.
| Size | kg / metre | kg / 12 m bar | Bars per tonne |
|---|---|---|---|
| 6 mm | 0.222 | 2.66 | 375 |
| 8 mm | 0.395 | 4.74 | 210 |
| 10 mm | 0.617 | 7.40 | 135 |
| 12 mm | 0.889 | 10.67 | 93 |
| 16 mm | 1.580 | 18.96 | 52 |
| 20 mm | 2.469 | 29.63 | 33 |
| 25 mm | 3.858 | 46.30 | 21 |
| 32 mm | 6.321 | 75.85 | 13 |
Now you know the quantity. Around 3.5–4.5 tonnes for this build. Steel is quoted per kg and moves daily.
See today's prices in Hyderabad
