14 mm rebar weight
1.210 kg/m · 0.813 lb/ft
14 mm rebar has a nominal diameter of 14 mm and a cross-sectional area of 154 mm².
14 mm rebar weight calculator
Weight of standard bar lengths
| Bars | 6 m (kg) | 12 m (kg) |
|---|---|---|
| 1 | 7.3 | 14.5 |
| 10 | 72.6 | 145.2 |
| 50 | 363.0 | 726.0 |
| 100 | 726.0 | 1,452.0 |
Bars per tonne
| Bar length | Bars per tonne |
|---|---|
| 6 m | 137.7 |
| 9 m | 91.8 |
| 12 m | 68.9 |
One tonne of 14 mm rebar is 826 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 × 14² = 153.9 mm². Weight per metre = area × 7850 kg/m³ = 153.9 × 10⁻⁶ m² × 7850 = 1.208 kg/m. The d² ÷ 162 rule gives 196 ÷ 162 = 1.210 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.
14 mm rebar per square metre of slab
Weight of 14 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 | 12.10 | 24.20 |
| 125 mm | 9.68 | 19.36 |
| 150 mm | 8.07 | 16.13 |
| 200 mm | 6.05 | 12.10 |
| 250 mm | 4.84 | 9.68 |
| 300 mm | 4.03 | 8.07 |
Compared with nearby sizes
| Bar | kg/m | lb/ft | vs this bar |
|---|---|---|---|
| 10 mm rebar | 0.617 | 0.415 | −49 % |
| 12 mm rebar | 0.888 | 0.597 | −27 % |
| 14 mm rebar | 1.210 | 0.813 | — |
| 16 mm rebar | 1.580 | 1.062 | +31 % |
| 20 mm rebar | 2.470 | 1.660 | +104 % |
Bars of this size are typical main reinforcement for beams, columns, footings and retaining walls. The nearest US bar is #4 rebar (12.7 mm, 0.994 kg/m).
Frequently asked questions
What is the weight of 14 mm rebar per metre?
14 mm rebar weighs 1.210 kg/m (0.813 lb/ft). By the rule of thumb d squared over 162: 14 x 14 / 162 = 1.210 kg/m.
How much does a 12 m bar of 14 mm rebar weigh?
14.52 kg (1.210 kg/m × 12 m). A 6 m bar weighs 7.26 kg.
How many 12 m bars of 14 mm rebar are in a tonne?
About 68.9 bars, or 826 m per tonne.
What is the US equivalent of 14 mm rebar?
The nearest US bar is #4 rebar (12.7 mm, 0.994 kg/m). Check the steel area in the design before substituting one for the other.
How is the weight of 14 mm rebar calculated?
Area = π ÷ 4 × 14² = 153.9 mm². Weight per metre = area × 7850 kg/m³ = 153.9 × 10⁻⁶ m² × 7850 = 1.208 kg/m. The d² ÷ 162 rule gives 196 ÷ 162 = 1.210 kg/m.
How much 14 mm rebar is needed per square metre at 150 mm spacing?
One layer at 150 mm centres needs 8.07 kg/m² in one direction, 16.13 kg/m² for bars both ways, plus laps.
Other bar sizes
6 mm rebar · 8 mm rebar · 10 mm rebar · 12 mm rebar · 16 mm rebar · 20 mm rebar · 25 mm rebar · 28 mm rebar · 32 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).