Skip to main content

Bathroom Waterproofing Calculator

Lifestyle Tools

Floor + wall coating area, film thickness usage, buckets

Quick Answer

Bathroom Waterproofing Calculator: Floor + wall coating area, film thickness usage, buckets. Bathroom Waterproofing Calculator uses standard everyday life formulas to compute accurate results instantly.

Bathroom dimensions

m
m
m
m²
Total waterproofing material50.88 kg

Coating area 21.2 m² · 1.5mm film at 2.4 kg/m² · about 3 buckets (20kg)

Calculation

  1. 1Floor = 2.5 × 2 = 5 m²
  2. 2Walls = 2 × (2.5 + 2) × 1.8 − deductions 0 = 16.2 m²
  3. 3Total area = 21.2 m²; usage = 21.2 × 2.4 = 50.88 kg
Per GB/T 23445-2009 (polymer cement waterproof coating): 1.0mm film ≈ 1.6 kg/m², 1.5mm ≈ 2.4, 2.0mm ≈ 3.1 — JS/acrylic and PU rates are similar. Apply two coats totaling ≥1mm (1.5mm recommended), 4-8h between coats, second coat perpendicular to the first. Wall heights: shower zone ≥1.8m (2m if spray head is high), vanity zone ≥1.2m, other walls ≥0.25m. Reinforce pipe roots, drains and corners with sealant fillets plus mesh; keep 10-15% extra material. Finish with a 48h ponding test (≥30mm water depth).

Was this tool helpful?

How to Use

  1. Enter scenario values: fill real-life numbers into the Bathroom Waterproofing Calculator (defaults work for a quick try).
  2. Instant results: everything computes live, no button needed.
  3. Read the advice: results come with practical tips, reference standards and pitfalls.
  4. Compare options: adjust parameters to compare choices side by side.

Key Points

  • Bathroom Waterproofing Calculator is a free online everyday life tool — open and use, no sign-up.
  • All calculations run locally in your browser; your data never leaves the device.
  • Key capability: Floor + wall coating area, film thickness usage, buckets.
  • Results come with formulas and reference tables so you can verify every number.

Formula & How It Works

Bathroom Waterproofing Calculator formula

Bathroom Waterproofing Calculator uses standard everyday life formulas to compute accurate results instantly.

FAQ

How do I use the Bathroom Waterproofing Calculator?
Open the page and fill in the input fields — results update automatically. Floor + wall coating area, film thickness usage, buckets.
Are the results accurate?
Yes. Standard formulas and conversion factors are used and verified.
Is it free? Do I need to sign up?
Completely free. No registration, login or download required.
Does it work on mobile?
Yes. The responsive design works on phones, tablets and desktops.
Is my data saved?
No. Everything runs locally in your browser.

Related Tools

Related Guides

Source & Updates

Based on common formulas and industry conventions. Last updated: 2025-07

Last updated:

Formulas and content on this page are reviewed by the YiJianSuan team. For reference only — official sources prevail.

Maintained and periodically reviewed by the YiJianSuan editorial team — review process in ourEditorial Policy.

Cite this page: YiJianSuan. Bathroom Waterproofing Calculator[EB/OL]. https://www.yijiansuan.com/en/c/life/waterproof

Results provided by this tool are for reference only and do not constitute professional advice.