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Paint Calculator by Loom & Glow
Stop guessing how much paint your room needs
Enter your room's width, length and wall height and get the exact litres of paint to buy, plus which tin sizes make sense. Handles multiple coats, doors, windows, the ceiling, and metres or feet. Free, no signup, no email wall. Built for real UK rooms.
Hi Product Hunt 👋
I'm Mara from Loom & Glow. The same question kept coming up in my inbox and in every decorating forum I read: "how much paint do I actually need?"
Every answer was either a vague rule of thumb or a paint brand's calculator that conveniently rounds up to the next tin. So I built the one I wanted: width, length and wall height in, litres and sensible tin sizes out. It subtracts doors and windows instead of pretending walls are solid, handles coats and the ceiling, and switches between metres and feet.
The maths is open, right on the page: paintable area = 2 × (width + length) × wall height, minus ~1.8 m² per door and ~1.5 m² per window, × coats, ÷ the paint's coverage. It rounds up so you're never 20 cm short at the end of a wall. No signup, no email wall.
Two things I'd genuinely like feedback on: are the coverage figures right where you live (these are UK-typical, 12 m²/L emulsion)? And what's the next decorating number you have to Google every time?
About Paint Calculator by Loom & Glow on Product Hunt
“Stop guessing how much paint your room needs”
Paint Calculator by Loom & Glow was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #114 on the daily leaderboard. Enter your room's width, length and wall height and get the exact litres of paint to buy, plus which tin sizes make sense. Handles multiple coats, doors, windows, the ceiling, and metres or feet. Free, no signup, no email wall. Built for real UK rooms.
On the analytics side, Paint Calculator by Loom & Glow competes within Web App, Design Tools and Home — topics that collectively have 555.3k followers on Product Hunt. The dashboard above tracks how Paint Calculator by Loom & Glow performed against the three products that launched closest to it on the same day.
Who hunted Paint Calculator by Loom & Glow?
Paint Calculator by Loom & Glow was hunted by Mara Whitfield. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Paint Calculator by Loom & Glow including community comment highlights and product details, visit the product overview.
Mara Whitfield