Rebar Weight & Bar Calculator
kg, laps, stirrups, 12m bars
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
From drawings to steel list in seconds: bar weights, 12 m stock cutting with laps, and stirrup counts — takeoff without the spreadsheet.
The site engineer's rebar takeoff calculator — weight, stirrups and 12 m stock bars in one honest tool.
Pick the bar diameter with big Ø8–Ø32 chips, enter length and count on a glove-friendly keypad, and read the total steel weight in kg (with tonnes for big numbers) — computed from the published nominal unit-weight table (EN 10080 / ISO 6935-2). Lap splices are one stepper away: the length defaults to the 40Ø field rule and stays fully editable.
STIRRUPS (PRO)
Element length and spacing give the stirrup count; section b×h, concrete cover and the 135° hook (auto max(10Ø, 75 mm), editable) give the single-stirrup length. Pick Ø8 or Ø10 and read the total stirrup steel in kg.
12 M BARS
Simple mode: enter the running total length and get the stock bars to buy plus the waste. Cut-list mode (Pro): enter piece lengths × counts and get a first-fit-decreasing packing into 12 m bars — bars to buy, waste in m and %, a clear verdict against the usual 3–5% estimating budget, and a bar-by-bar cutting plan.
PRO
• Multi-item project takeoff: per-diameter totals plus a grand total in kg and tonnes
• Stirrup planner
• Cut-list optimizer with the packing plan
• Save takeoffs to history
• Share clean PDF reports
Built for gloves and sunlight: big keypad, huge results, Outdoor Bright mode.
Everything stays on your phone — fully offline, no account, no tracking.
Results are estimating aids; always verify with the structural drawings.
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Privacy Policy: https://hdappstudio.com/rebarcalc/privacy/
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The developer, HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
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The following data may be collected but it is not linked to your identity:
- Purchases
Accessibility
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Information
- Seller
- HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI
- Size
- 10.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 10 more
- English, Arabic, French, German, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Turkish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- RebarCalc Pro — Lifetime $29.99
- RebarCalc Pro — Monthly $2.99
- RebarCalc Pro — Yearly $14.99
- Copyright
- © 2026 Ercan Onur Ensert