Start with your steel.
Choose the bar size. Enter quantity and length in feet and inches. See nominal rebar weight without rebuilding the same calculation.
Built by a rebar contractor
Know your steel.
Own your takeoff.
Calculate rebar weight in pounds and tons. Keep bar entries, job sections and notes in one organized place—from the first bar to the final total.
Free weight preview · Monthly subscriptions available
REBAR CALCULATOREXAMPLE TAKEOFFRiver Road · Foundation
Keep the details. See the whole job.
Wall A + Footing2 bar entries
| Section | Bar | Qty | Length | Weight |
|---|---|---|---|---|
| Wall A | #5 | 200 | 20′ 0″ | 4,172 lb |
| Footing | #4 | 200 | 20′ 0″ | 2,672 lb |
OVERALL JOB WEIGHT6,844 lb
US SHORT TONS3.422 tons
Illustrative job and interface · 1 US short ton = 2,000 lb
THE BARS. THE NOTES. THE BIG PICTURE.
Pounds & US short tonsUS bar sizes #3–#11, #14, #18Job sections & notesSaved takeoffs
A better way to keep count
From the bar list
to the bigger picture.
Purpose-built for reinforcing steel work. Straightforward inputs, clear weight totals and room for the details that matter.
Give every pour a place.
Break the job into walls, footings or pours. Name your sections, add notes and include additional weight where you need it.
Come back to the whole job.
Save takeoffs to your signed-in account and reopen them later. Keep section totals and overall job weight together.
Put a number to it
A quick weight check.
No sign-in needed.
Try one bar entry here. The full calculator brings multiple entries, job sections, notes and saved takeoffs together.
This preview uses nominal US rebar weights. Enter developed length for bent bars. Waste and lap allowances are not added automatically. Verify dimensions and project requirements before ordering or installing material.
Your takeoff, organized
One focused tool.
One monthly plan.
Spend less time sorting scattered calculations. Bring your rebar weights and job details into a workspace built for the field.
- Weight in pounds and US short tons
- Multiple bar entries and job sections
- Section notes and additional weight
- Saved jobs and overall takeoff totals
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For the first 12 months.
Then $10.18 USD per month.
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Once purchased, the plan renews monthly until canceled. Cancellation takes effect at the end of your paid billing period. Review our subscription terms and privacy policy.
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Yes. Sign in with ChatGPT, then choose Subscribe / Manage subscription above to open your account and start secure Stripe checkout. Review the amount and monthly renewal terms before confirming payment.
Does it work on my phone?
This version runs in a web browser on your phone, tablet or computer. Dedicated Apple App Store and Google Play versions are not available yet.
Which rebar sizes can I calculate?
The calculator supports US bar sizes #3 through #11, plus #14 and #18. Enter quantity and bar length in feet and inches to calculate nominal weight in pounds and US short tons.
How do cancellations work?
You can manage billing and request cancellation through the billing portal. Cancellation takes effect at the end of the paid billing period. For billing errors or refund requests, contact support for review.
What should I check before using a result?
Verify quantities, bar sizes, lengths, drawings and specifications. Use developed lengths for bent bars, including bends and hooks. Waste and laps are not added automatically. Rebar Calculator is an estimating aid and does not replace design or engineering review.