US bar number to inch fractions
Type a value in # to get it in in (fraction) instantly.
5/8in (fraction)
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 (fraction)
Up to #8, diameter = number ÷ 8 in; #9–#18 by table. Weight = 0.006165 × d² kg/m (d in mm).
Example: #5 # = 5/8 in (fraction).
Every unit
That bar in every unit
Tables
# to in (fraction) conversion table
| # | in (fraction) |
|---|---|
| #3 # | 3/8 in (fraction) |
| #4 # | 1/2 in (fraction) |
| #5 # | 5/8 in (fraction) |
| #6 # | 3/4 in (fraction) |
| #7 # | 7/8 in (fraction) |
| #8 # | 1 in (fraction) |
| #9 # | ≈1 1/8 in (fraction) |
| #10 # | ≈1 1/4 in (fraction) |
| #11 # | ≈1 7/16 in (fraction) |
| #14 # | ≈1 11/16 in (fraction) |
| #18 # | ≈2 1/4 in (fraction) |
in (fraction) to # conversion table
| in (fraction) | # |
|---|---|
| 3/8 in (fraction) | #3 # |
| 1/2 in (fraction) | #4 # |
| 5/8 in (fraction) | #5 # |
| 3/4 in (fraction) | #6 # |
| 7/8 in (fraction) | #7 # |
| 1 in (fraction) | #8 # |
| 1 1/8 in (fraction) | #9 # |
| 1 1/4 in (fraction) | #10 # |
| 1 7/16 in (fraction) | #11 # |
| 1 11/16 in (fraction) | #14 # |
| 2 1/4 in (fraction) | #18 # |
Quick answers
Quick answers
- How many in (fraction) is #10 #?
- #10 # is ≈1 1/4 in (fraction).
- How many in (fraction) is #5 #?
- #5 # is 5/8 in (fraction).
The units
About these units
US bar number (#)
US bar size #3 to #18.
Inch fractions (in (fraction))
Nominal diameter to the nearest 16th.
Keep going