Rebar Weight and Size Calculator
Calculate the weight and size of the rebar for your project given the length and quantity.
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Learn How to Find the Size and Weight of Rebar
Rebar, or reinforcing bar, is used in many masonry and concrete projects to reinforce slabs and structures. It is available in standard sizes, thus it is easy to find the weight and dimensions of the rebar for your project. The first step is to identify which size of rebar is being used on the project, for example, a #3 rebar.
The next step is to identify how much linear footage of rebar will be used. You can use our rebar material calculator to find out how much rebar you need for your project. Alternatively, multiply the length of rebar by the quantity used to find the linear footage. Learn more about how to find linear footage.
Refer to the charts below for the dimensions for each size of rebar. Find the diameter and area of the rebar along with the weight per linear foot. To find the total weight, multiply the total length of rebar with the weight per linear foot if measured in feet, or weight per meter if measured in meters.
US Rebar Weight and Dimensions
| Imperial Bar Size | “Soft” Metric Size | Weight | Nominal Diameter | Nominal Area | |||
|---|---|---|---|---|---|---|---|
| lb/ft | kg/m | inch | mm | inch2 | mm2 | ||
| #2 | #6 | 0.167 | 0.249 | 0.250 = 1/4“ | 6.35 | 0.05 | 32 |
| #3 | #10 | 0.376 | 0.561 | 0.375 = 3/8“ | 9.525 | 0.11 | 71 |
| #4 | #13 | 0.668 | 0.996 | 0.500 = 1/2“ | 12.7 | 0.20 | 129 |
| #5 | #16 | 1.043 | 1.556 | 0.625 = 5/8“ | 15.875 | 0.31 | 200 |
| #6 | #19 | 1.502 | 2.24 | 0.750 = 3/4“ | 19.05 | 0.44 | 284 |
| #7 | #22 | 2.044 | 3.049 | 0.875 = 7/8“ | 22.225 | 0.60 | 387 |
| #8 | #25 | 2.670 | 3.982 | 1.000 = 1″ | 25.4 | 0.79 | 509 |
| #9 | #29 | 3.400 | 5.071 | 1.128 = 1 1/8“ | 28.65 | 1.00 | 645 |
| #10 | #32 | 4.303 | 6.418 | 1.270 = 1 1/4“ | 32.26 | 1.27 | 819 |
| #11 | #36 | 5.313 | 7.924 | 1.410 = 1 3/8“ | 35.81 | 1.56 | 1006 |
| #14 | #43 | 7.650 | 11.41 | 1.693 = 1 3/4“ | 43 | 2.25 | 1452 |
| #18 | #57 | 13.60 | 20.284 | 2.257 = 2 1/4“ | 57.3 | 4.00 | 2581 |
Canadian Rebar Weight and Dimensions
| Metric Bar Size | Weight kg/m |
Nominal Diameter mm |
Nominal Area mm2 |
|---|---|---|---|
| 10M | 0.785 | 11.3 | 100 |
| 15M | 1.570 | 16.0 | 200 |
| 20M | 2.355 | 19.5 | 300 |
| 25M | 3.925 | 25.2 | 500 |
| 30M | 5.495 | 29.9 | 700 |
| 35M | 7.850 | 35.7 | 1000 |
| 45M | 11.775 | 43.7 | 1500 |
| 55M | 19.625 | 56.4 | 2500 |
European Rebar Weight and Dimensions
| Metric Bar Size | Weight kg/m |
Nominal Diameter mm |
Nominal Area mm2 |
|---|---|---|---|
| 6,0 | 0.222 | 6 | 28.3 |
| 8,0 | 0.395 | 8 | 50.3 |
| 10,0 | 0.617 | 10 | 78.5 |
| 12,0 | 0.888 | 12 | 113 |
| 14,0 | 1.21 | 14 | 154 |
| 16,0 | 1.58 | 16 | 201 |
| 20,0 | 2.47 | 20 | 314 |
| 25,0 | 3.85 | 25 | 491 |
| 28,0 | 4.83 | 28 | 616 |
| 32,0 | 6.31 | 32 | 804 |
| 40,0 | 9.86 | 40 | 1257 |
| 50,0 | 15.4 | 50 | 1963 |
