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:

Hex Bar Material:

Density:

kg/m³

Number of Bars:

Hex Bar Length (L):

Unit:

Hex Bar Width (AF):

Unit:

Calculate

Reset

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:

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     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:

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

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 – 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].

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.

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