32 mm rebar weight
6.310 kg/m · 4.240 lb/ft
32 mm rebar has a nominal diameter of 32 mm and a cross-sectional area of 804 mm².
32 mm rebar weight calculator
Weight of standard bar lengths
| Bars | 6 m (kg) | 12 m (kg) |
|---|---|---|
| 1 | 37.9 | 75.7 |
| 10 | 378.6 | 757.2 |
| 50 | 1,893.0 | 3,786.0 |
| 100 | 3,786.0 | 7,572.0 |
Bars per tonne
| Bar length | Bars per tonne |
|---|---|
| 6 m | 26.4 |
| 9 m | 17.6 |
| 12 m | 13.2 |
One tonne of 32 mm rebar is 158 m per tonne. Use this to turn a weight on a delivery note into a bar count.
How the weight is calculated
Area = π ÷ 4 × 32² = 804.2 mm². Weight per metre = area × 7850 kg/m³ = 804.2 × 10⁻⁶ m² × 7850 = 6.313 kg/m. The d² ÷ 162 rule gives 1024 ÷ 162 = 6.321 kg/m.
Deformed bars and TMT bars are sold by nominal diameter and nominal mass; the ribs are already allowed for, and standards accept a small mass tolerance per bar. See the rebar weight formula guide.
32 mm rebar per square metre of slab
Weight of 32 mm rebar in a slab or wall for common spacings, for one layer in one direction and for bars both ways. Add laps, hooks and chairs on top.
| Spacing (centres) | One direction (kg/m²) | Both directions (kg/m²) |
|---|---|---|
| 100 mm | 63.10 | 126.20 |
| 125 mm | 50.48 | 100.96 |
| 150 mm | 42.07 | 84.13 |
| 200 mm | 31.55 | 63.10 |
| 250 mm | 25.24 | 50.48 |
| 300 mm | 21.03 | 42.07 |
Compared with nearby sizes
| Bar | kg/m | lb/ft | vs this bar |
|---|---|---|---|
| 25 mm rebar | 3.850 | 2.587 | −39 % |
| 28 mm rebar | 4.830 | 3.246 | −23 % |
| 32 mm rebar | 6.310 | 4.240 | — |
| 40 mm rebar | 9.860 | 6.626 | +56 % |
| 50 mm rebar | 15.400 | 10.348 | +144 % |
Bars this heavy are used in heavily loaded columns, transfer beams, piles, bridge decks and large foundations. The nearest US bar is #10 rebar (32.3 mm, 6.404 kg/m).
Frequently asked questions
What is the weight of 32 mm rebar per metre?
32 mm rebar weighs 6.310 kg/m (4.240 lb/ft). By the rule of thumb d squared over 162: 32 x 32 / 162 = 6.321 kg/m.
How much does a 12 m bar of 32 mm rebar weigh?
75.72 kg (6.310 kg/m × 12 m). A 6 m bar weighs 37.86 kg.
How many 12 m bars of 32 mm rebar are in a tonne?
About 13.2 bars, or 158 m per tonne.
What is the US equivalent of 32 mm rebar?
The nearest US bar is #10 rebar (32.3 mm, 6.404 kg/m). Check the steel area in the design before substituting one for the other.
How is the weight of 32 mm rebar calculated?
Area = π ÷ 4 × 32² = 804.2 mm². Weight per metre = area × 7850 kg/m³ = 804.2 × 10⁻⁶ m² × 7850 = 6.313 kg/m. The d² ÷ 162 rule gives 1024 ÷ 162 = 6.321 kg/m.
How much 32 mm rebar is needed per square metre at 150 mm spacing?
One layer at 150 mm centres needs 42.07 kg/m² in one direction, 84.13 kg/m² for bars both ways, plus laps.
Other bar sizes
6 mm rebar · 8 mm rebar · 10 mm rebar · 12 mm rebar · 14 mm rebar · 16 mm rebar · 20 mm rebar · 25 mm rebar · 28 mm rebar · 40 mm rebar · 50 mm rebar
Full rebar weight chart · Steel weight calculator
Data adapted from Wikipedia, "Rebar" (CC BY-SA 4.0).