convertimate Rebar sizes

US bar number to inches

Type a value in # to get it in in instantly.

0.625in

That's 1.32× as thick as slab rebar, while footing rebar is 1.01× thicker. A bar that thick weighs 1.554 kg/m (1.044 lb/ft).

What it means

How thick is that bar?

Nominal diameters (ASTM A615). Weight for steel at 7,850 kg/m³; the deformations (ribs) are included in the nominal size.

The math

How to convert # to in

Up to #8, diameter = number ÷ 8 in; #9–#18 by table. Weight = 0.006165 × d² kg/m (d in mm).

Example: #5 # = 0.625 in.

Every unit

That bar in every unit

Tables

# to in conversion table

# to in conversion table
#in
#3 #0.375 in
#4 #0.5 in
#5 #0.625 in
#6 #0.75 in
#7 #0.875 in
#8 #1 in
#9 #1.128 in
#10 #1.27 in
#11 #1.41 in
#14 #1.693 in
#18 #2.257 in
in to # conversion table
in to # conversion table
in#
0.375 in#3 #
0.5 in#4 #
0.625 in#5 #
0.75 in#6 #
0.875 in#7 #
1 in#8 #
1.13 in#9 #
1.27 in#10 #
1.41 in#11 #
1.69 in#14 #

Quick answers

Quick answers

How many in is #10 #?
#10 # is 1.27 in.
How many in is #5 #?
#5 # is 0.625 in.

The units

About these units

US bar number (#)

US bar size #3 to #18.

Inches (in)

Nominal diameter in decimal inches.

Learn more about bar units

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