# Hex Bar Weight Calculator

From aluminum to stainless steel, our handy calculator makes it quick and easy to calculate the weight of hex bar stock.

For technical guidance, please refer to the user guide below the calculator. We’ve also included a series of helpful reference tables below that display additional hex bar weight information, for example, on a per foot or meter basis.

Calculate Hex Bar Weight:
Total Weight = 0.00 lbs / 0.00 kg

## How to Use the Hex Bar Weight Calculator

1. Use the ‘Hex Bar Material’ box to choose a material.

The ‘Density’ box will automatically be populated based on your material choice (unless you choose ‘Other’, with this option allowing you to use the calculator with other hex bar materials not already included).

You can update the ‘Density’ figure if needed, although this is based on industry guidance for each material.

!

Note: If you choose ‘Other’ as a material, you’ll need to insert a density (on a kg/m3 basis) for the calculator to function.

2. Use the ‘Number of Bars’ box to specify how many hex bar units to include in the calculation.
3. Use the ‘Hex Bar Length (L)’ and ‘Hex Bar Width (AF)’ boxes to specify the size of hex bar to include in the specification.

You can select the relevant units for each measurement using the ‘Unit’ dropdowns.

!

Note: If you choose ‘inch’ as a unit, you’ll need to use either whole or decimal numbers instead of fractions. For example, 0.25 instead of 1/4.

Click the button below to view a table of common hex bar inch widths as decimals that you can use in the calculator:

• Hex Bar Width – Inch to Decimal Conversion Table

1/8

0.125

1-9/16

1.5625

3-5/8

3.625

5/32

0.15625

1-5/8

1.625

3-11/16

3.6875

3/16

0.1875

1-11/16

1.6875

3-3/4

3.75

7/32

0.21875

1-3/4

1.75

3-13/16

3.8125

1/4

0.25

1-13/16

1.8125

3-7/8

3.875

9/32

0.28125

1-7/8

1.875

3-15/16

3.9375

5/16

0.1325

1-15/16

1.9375

4

4.00

11/32

0.34375

2

2.00

4-1/8

4.125

3/8

0.375

2-1/16

2.0625

4-3/16

4.1875

13/32

0.40625

2-1/8

2.125

4-1/4

4.25

7/16

0.4375

2-3/16

2.1875

4-5/16

4.3125

15/16

0.9375

2-1/4

2.25

4-3/8

4.375

1/2

0.5

2-5/16

2.3125

4-7/16

4.4375

17/32

0.53125

2-3/8

2.375

4-1/2

4.50

9/16

0.5625

2-7/16

2.4375

4-9/16

4.5625

19/32

0.59375

2-1/2

2.50

4-5/8

4.625

5/8

0.625

2-9/16

2.5625

4-11/16

4.6875

11/16

0.6875

2-5/8

2.625

5

5.00

3/4

0.75

2-11/16

2.6875

5-1/16

5.0625

13/16

0.8125

2-3/4

2.75

5-1/8

5.125

7/8

0.875

2-7/8

2.875

5-3/16

5.1875

13/16

0.8125

2-15/16

2.9375

5-1/4

5.25

15/16

0.9375

3

3.00

5-3/8

5.375

1

1.00

3-1/16

3.0625

5-7/16

5.4375

1-1/16

1.0625

3-1/8

3.125

5-1/2

5.50

1-1/8

1.125

3-3/16

3.1875

5-5/8

5.625

1-3/16

1.1875

3-1/4

3.25

5-3/4

5.75

1-1/4

1.25

3-5/16

3.3125

5-7/8

5.875

1-5/16

1.3125

3-3/8

3.375

5-15/16

5.9375

1-3/8

1.375

3-7/16

3.4375

6

6.00

1-7/16

1.4375

3-1/2

3.50

1-1/2

1.50

3-9/16

3.5625

4. Use the ‘Calculate’ button to complete the calculation, and the ‘Reset’ button to reset the hex bar weight calculator.

## How Is Hex Bar Measured?

Hex bar stock typically has two dimensions. The thickness or width of the hex bar is measured as the distance between the opposite flat faces of the bar, while the length is the measurement from one end of the bar to the other.

An example image showing the ‘cross flats’ width measurement of a hex bar is shown in the above calculator.

## How to Calculate the Weight of Hex Bar

The first step is to determine the volume of the hexagonal bar, with the equation as follows:

V = (((√3/2) x AFW2) x L)

When calculating the weight of hex bar stock, the equation consists of the following elements:

V = Volume

AFW = The ‘across flats’ width of the hex bar

L = The length of the hex bar

Let’s work through an example of a stainless steel (type 304) hex bar that has an ‘across flats’ width of 50mm and a length of 1-meter.

In this case, we’ll be dividing the square root of 3 (approximately 1.73) by 2 before multiplying this figure by the across-flats width (50mm) squared, before finally multiplying this figure by the length of the steel hex bar (1m).

Because we’re using a density of 7930 kg/m3 for the calculation, we’ll need to convert the dimensions in this example to meters. The length of the bar is already 1-meter, so we don’t need to change this, but the 50mm width should be 0.05 (the width dimension converted to meters).

Here’s how the calculation works:

Volume = (((1.73÷2)×(0.05×0.05)×1))
Volume = 0.002165m3

Stainless Steel Type 304 Density = 7930 kg/m3

If we multiply the 0.0021653 volume figure by the 7930 kg/m3 density figure, we end up with a weight of 17.17 kg or 37.85 lbs.

Alternatively, use our hex bar weight calculator above to work out the weight of hexagonal bar stock quickly and easily.

## Hex Bar Reference Weight Tables

### Steel Hex Bar – Reference Weight Table (Imperial)

For those in the United States, or for anyone who prefers working with imperial sizing, here’s a summary of the approximate weight of both stainless and mild steel hex bar across a variety of imperial widths (across flats):

[Scroll table if necessary].

 Steel Hex Bar – Imperial Weight Table Hex Bar Width – Across Flats (inches) Stainless Steel Hex Bar(Type 304) Mild Steel Hex Bar Approximate Weight per Foot Approximate Weight per 20′ Bar Approximate Weight per Foot Approximate Weight per 20′ Bar 1/8 0.05 lbs 0.56 lbs 0.05 lbs 0.55 lbs 1/4 0.19 lbs 2.23 lbs 0.18 lbs 2.21 lbs 1/2 0.74 lbs 8.92 lbs 0.74 lbs 8.83 lbs 3/4 1.67 lbs 20.06 lbs 1.66 lbs 19.86 lbs 1 2.97 lbs 35.67 lbs 2.94 lbs 35.31 lbs 1-1/8 3.76 lbs 45.14 lbs 3.72 lbs 44.69 lbs 1-1/4 4.64 lbs 55.73 lbs 4.60 lbs 55.17 lbs 1-1/2 6.69 lbs 80.25 lbs 6.62 lbs 79.45 lbs 1-3/4 9.10 lbs 109.24 lbs 9.01 lbs 108.13 lbs 2 11.89 lbs 142.68 lbs 11.77 lbs 141.24 lbs 2-1/8 13.42 lbs 161.07 lbs 13.29 lbs 159.44 lbs 2-1/4 15.05 lbs 180.57 lbs 14.90 lbs 178.75 lbs 2-1/2 18.58 lbs 222.93 lbs 18.39 lbs 220.68 lbs 2-3/4 22.48 lbs 269.75 lbs 22.25 lbs 267.02 lbs 3 26.75 lbs 321.02 lbs 26.48 lbs 317.78 lbs 3-1/8 29.03 lbs 348.33 lbs 28.73 lbs 344.81 lbs 3-1/4 31.40 lbs 376.75 lbs 31.08 lbs 372.95 lbs 3-1/2 36.41 lbs 436.94 lbs 36.04 lbs 432.53 lbs 3-3/4 41.80 lbs 501.59 lbs 41.38 lbs 496.53 lbs 4 47.56 lbs 570.70 lbs 47.08 lbs 564.94 lbs 4-1/8 50.58 lbs 606.93 lbs 50.07 lbs 600.80 lbs 4-1/4 53.69 lbs 644.27 lbs 53.15 lbs 637.77 lbs 4-1/2 60.19 lbs 722.29 lbs 59.58 lbs 715.01 lbs 4-3/4 67.06 lbs 804.78 lbs 66.39 lbs 796.66 lbs 5 74.31 lbs 891.72 lbs 73.56 lbs 882.72 lbs 5-1/8 78.07 lbs 936.86 lbs 77.28 lbs 927.41 lbs 5-1/4 81.93 lbs 983.12 lbs 81.10 lbs 973.20 lbs 5-1/2 89.92 lbs 1078.98 lbs 89.01 lbs 1068.10 lbs 5-3-04 98.27 lbs 1179.30 lbs 97.28 lbs 1167.40 lbs 6 107.01 lbs 1284.08 lbs 105.93 lbs 1271.12 lbs

### Steel Hex Bar – Reference Weight Table (Metric)

For those residing outside of the United States, or for anyone who prefers working with metric sizing, here’s a summary of the approximate weight of both stainless and mild steel hex bar across a variety of metric widths (across flats):

[Scroll table if necessary].

 Steel Hex Bar Bar – Metric Weight Table Hex Bar Width – Across Flats (mm) Stainless Steel Hex Bar(Type 304) Mild Steel Hex Bar Approximate Weight per Meter Approximate Weight per 3m Bar Approximate Weight per Meter Approximate Weight per 3m Bar 2mm 0.03 kg 0.08 kg 0.03 kg 0.08 kg 3mm 0.06 kg 0.19 kg 0.06 kg 0.18 kg 4mm 0.11 kg 0.33 kg 0.11 kg 0.33 kg 5mm 0.17 kg 0.52 kg 0.17 kg 0.51 kg 6mm 0.25 kg 0.74 kg 0.24 kg 0.73 kg 7mm 0.34 kg 1.01 kg 0.33 kg 1.00 kg 8mm 0.44 kg 1.32 kg 0.44 kg 1.31 kg 10mm 0.69 kg 2.06 kg 0.68 kg 2.04 kg 12mm 0.99 kg 2.97 kg 0.98 kg 2.94 kg 14mm 1.35 kg 4.04 kg 1.33 kg 4.00 kg 15mm 1.55 kg 4.64 kg 1.53 kg 4.59 kg 16mm 1.76 kg 5.27 kg 1.74 kg 5.22 kg 18mm 2.23 kg 6.68 kg 2.20 kg 6.61 kg 20mm 2.75 kg 8.24 kg 2.72 kg 8.16 kg 22mm 3.32 kg 9.97 kg 3.29 kg 9.87 kg 24mm 3.96 kg 11.87 kg 3.92 kg 11.75 kg 25mm 4.29 kg 12.88 kg 4.25 kg 12.75 kg 28mm 5.38 kg 16.15 kg 5.33 kg 15.99 kg 30mm 6.18 kg 18.54 kg 6.12 kg 18.36 kg 32mm 7.03 kg 21.10 kg 6.96 kg 20.88 kg 34mm 7.94 kg 23.82 kg 7.86 kg 23.58 kg 36mm 8.90 kg 26.70 kg 8.81 kg 26.43 kg 40mm 10.99 kg 32.96 kg 10.88 kg 32.63 kg 45mm 13.91 kg 41.72 kg 13.77 kg 41.30 kg 50mm 17.17 kg 51.51 kg 17.00 kg 50.99 kg 55mm 20.77 kg 62.32 kg 20.56 kg 61.69 kg 60mm 24.72 kg 74.17 kg 24.47 kg 73.42 kg 65mm 29.02 kg 87.05 kg 28.72 kg 86.17 kg 70mm 33.65 kg 100.95 kg 33.31 kg 99.94 kg 75mm 38.63 kg 115.89 kg 38.24 kg 114.72 kg 80mm 43.95 kg 131.86 kg 43.51 kg 130.53 kg 85mm 49.62 kg 148.85 kg 49.12 kg 147.35 kg 90mm 55.63 kg 166.88 kg 55.07 kg 165.20 kg 95mm 61.98 kg 185.94 kg 61.35 kg 184.06 kg 100mm 68.68 kg 206.03 kg 67.98 kg 203.95 kg 105mm 75.72 kg 227.15 kg 74.95 kg 224.85 kg 110mm 83.10 kg 249.29 kg 82.26 kg 246.78 kg 115mm 90.82 kg 272.47 kg 89.91 kg 269.72 kg 120mm 98.89 kg 296.68 kg 97.90 kg 293.69 kg 125mm 107.31 kg 321.92 kg 106.22 kg 318.67 kg

## Quick Reference Information

### MS Hex Bar Weight

Mild steel hex bar has a typical density of 7850 kg/m3 (490 lbs/ft3).

In 20-foot lengths, mild steel hex bar weighs 14.71 lbs at a 1/2″ or 58.85 lbs at a 1″ width (across flats).

In metric sizes, a 12mm wide, 3-meter mild steel hex bar weighs 2.94 kg, while a 25mm wide bar of the same length weighs 12.75 kg.

### SS Hex Bar Weight

Type 304 stainless-steel hex bar has a typical density of 7930 kg/m3 (495 lbs/ft3).

A 20-foot, 1/2″ wide stainless steel hex bar weighs 14.86 lbs, or 59.45 lbs at a 1″ width (across flats).

In metric sizes, a 12mm wide, 3-meter stainless steel hex bar weighs 2.97 kg, while a 25mm wide bar weighs 12.88 kg.

### Aluminum Hex Bar Weight

6061 aluminum hex bar has a typical density of 2710 kg/m3 (169.18 lbs/ft3).

A 20-foot, 1/2″ wide 6061 aluminum hex bar weighs 5.06 lbs, or 20.24 lbs at a 1″ width (across flats).

In metric sizes, a 12mm wide, 3-meter 6061 aluminum hex bar weighs 1.01 kg, while a 25mm wide bar weighs 4.38 kg.

### Brass Hex Bar Weight

Brass hex bar has a typical density of 8525 kg/m3 (532.20 lbs/ft3).

A 20-foot, 1/2″ wide brass hex bar weighs 15.98 lbs, or 63.91 lbs at a 1″ width (across flats).

In metric sizes, a 12mm wide, 3-meter brass hex bar weighs 3.19 kg, while a 25mm wide bar weighs 13.84 kg.

### Titanium Hex Bar Weight

Titanium hex bar has a typical density of 4506 kg/m3 (281.30 lbs/ft3).

A 20-foot, 1/2″ wide titanium hex bar weighs 8.44 lbs, or 33.78 lbs at a 1″ width (across flats).

In metric sizes, a 12mm wide, 3-meter titanium hex bar weighs 1.69 kg, while a 25mm wide bar weighs 7.32 kg.