鉄筋電卓 − 重量・定尺・配筋・生コン

Moeki Kozawa · Utilities

Free

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What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Aug 26, 2026
New version 1.0.4 → 1.1.1

Minor improvements and stability fixes.

About

[Built for rebar, formwork and site crews] Run the numbers on site. Enter the bar size and length for total weight, the span and pitch for bar count, and get stock-cut loss, concrete volume and mixer-truck count from your phone. [What it calculates] - Rebar weight: total weight from size (D10-D51), length and count (JIS nominal unit mass) - Stock-cut & loss: required stock bars, offcut and loss rate - Spacing to count: bar count and actual pitch from span, pitch and end clearance - Concrete volume: volume and mixer-truck count from member size x qty and loss - Lap / development length: required length from size and multiplier (editable quick table) - Unit convert: tsubo, square meters, jo, shaku, kg, t [Takeoff (Pro)] Group line items by bar size, sum the total weight, and share as a PDF. [Privacy & offline] All data stays on your device. No servers, no logins, no ads, no required network. [Pricing] The basic calculators are free. The Pro upgrade (one-time, no subscription) unlocks the takeoff sheet, takeoff PDF export, unlimited saved history and the company-logo feature. Note: results are an aid. Always confirm final ordering and construction against the drawings, standards and specifications.

What's new · 1.1.1

Minor improvements and stability fixes.

Details

DeveloperMoeki Kozawa
ReleasedJun 2026
UpdatedJul 2026
Version1.1.1
Size61.5 MB
RequiresiOS 15.0 or later
Age rating4+
LanguagesEnglish, Japanese
PriceFree
Categories UtilitiesProductivity
Bundle IDcom.kozawamoeki.rebarCalc