Observed arrival · 2026-10-22
現場ポケット: Concrete Quantity Calculator
A free, no-login calculator for estimating concrete volumes, order quantities, and approximate costs across several common shapes.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Japanese construction-site quantity checkers
- Worth noticing
- Order estimates sum unrounded quantities first, then round upward to 0.001 m³; the site says to confirm actual order units with the ready-mix supplier.
Field notes
Users can split a job into named parts, set a different waste rate for each, and combine the entries into one list. The page distinguishes calculated volume from a waste-inclusive order estimate, and says the estimate is rounded upward only after the unrounded quantities are added. It also calls out two limits that affect real takeoffs: openings require a separate deduction, and sloped-floor calculations assume thickness changes linearly across the area.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue