Metal weight

Rebar Ø12 mm weight

Steel Rebar Ø12 weighs 0.89 kg/m. A 6 m bar weighs 5.3 kg and a 12 m bar 10.7 kg. Values are theoretical, for a density of 7.85 g/cm³.

Weight per metre0.89kg/m
6 m bar5.3kg
12 m bar10.7kg
Metres per tonne1,126.4m
Painting surface0.038m²/m
Ø 12 mm
Nominal diameter
12 mm
Usual bar length
12 m
Section area
1.13 cm²
Metres per tonne
1,126 m/t
Outer surface
0.038 m²/m

Weight by length

LengthSteelStainless 304Aluminium
1 m0.89 kg0.90 kg0.31 kg
2 m1.78 kg1.79 kg0.61 kg
3 m2.66 kg2.69 kg0.92 kg
4 m3.55 kg3.59 kg1.22 kg
5 m4.44 kg4.48 kg1.53 kg
6 m5.33 kg5.38 kg1.83 kg
8 m7.10 kg7.17 kg2.44 kg
10 m8.88 kg8.97 kg3.05 kg
12 m10.65 kg10.76 kg3.66 kg

How it was calculated

The weight is the section area multiplied by the material density:

kg/m = d² × 0.006165 (0.00617 rounded), where d is the nominal diameter in mm.

For Rebar Ø12, the section area is 1.13 cm², so 1 metre = 1.13 × 0.785 = 0.888 kg.

The real weight can differ by a few percent because of rolling tolerances. For other materials or lengths use the calculator.

Other rebar sizes

Rebar Ø6Rebar Ø8Rebar Ø10Rebar Ø12Rebar Ø14Rebar Ø16Rebar Ø18Rebar Ø20Rebar Ø22Rebar Ø25Rebar Ø28Rebar Ø32Full table →

Working out a whole order?

Add Rebar Ø12 to the materials list and see the total weight and cost of the order, together with the other products.

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Frequently asked questions

How much does one metre of Rebar Ø12 weigh?

One metre of steel Rebar Ø12 weighs 0.89 kg.

How much does a 6 m bar of Rebar Ø12 weigh?

A 6 m bar weighs 5.3 kg and a 12 m bar 10.7 kg.

How many metres of Rebar Ø12 are in one tonne?

One tonne contains about 1,126.4 metres.