Bolt Weight Calculator

Estimate fastener weight in seconds.

Pick a type, size, and material. We'll calculate per-piece and lot weight for shipping, freight class, and quoting — across 25+ materials, imperial or metric.

1Fastener type
What are you weighing?
2Configure
Size, material, and quantity.
Unit system
3Weight estimate
Hex Bolt
Size1/2MaterialAlloy / Carbon SteelLength3 inQty100
Total lot weight
19.65lbs
8.91 kg
× 100 pieces
Weight per piece
Each
0.1965 lbs
3.14 oz
89.1 g
0.0891 kg
Dimensions used
in
0.5 in
0.75 in
0.3281 in
0.45 in

Ready to order this fastener? Send the spec to our team for pricing and lead time.

Request a quote
Note: Approximate weight — a ±5–10% variance is normal due to manufacturing tolerances, thread form, chamfers, coatings, and head markings. For binding quotes, send the spec to our team.