Renovation & Home Calculators

Renovation & Home Calculators

Renovation calculators for Taiwan and the USA: paint, flooring, drywall, concrete, 坪 conversion and budget estimates.

Available tools

• Paint Calculator — Free paint calculator for walls and ceilings: deduct doors and windows, set coats and coverage, and get litres, US gallons and containers to buy.
• Flooring & Tile Calculator — Free flooring and tile calculator for metric and US units: room area, waste percentage, tile size or box coverage, and exact pieces or boxes to buy.
• Drywall Sheet Calculator — Calculate how many 4×8 ft, 4×12 ft, 3×6 尺 or 900×1800 mm drywall (gypsum board) sheets you need, with layers, waste allowance and screw estimate.
• Concrete Volume Calculator — Estimate concrete volume for a slab or pad in cubic metres, cubic yards and cubic feet, with waste allowance and pre-mixed bag counts.
• 坪 ↔ m² ↔ sq ft Converter — Convert Taiwan 坪 (ping) to square metres and US square feet in either direction using the exact 400/121 m² definition, with property-area notes.
• Renovation Budget Estimator — Estimate a renovation budget range with contingency: Taiwan NT$ per 坪 by property age with a category split, or USA and custom per-square-foot rates.

Further reading

• EPA lead-safe renovation (RRP) — USA
• 建築物室內裝修管理辦法 — 全國法規資料庫 (Taiwan)