Paint Calculator
Estimate gallons of paint for walls and optional ceiling.
- On your device
- No signup
Everyday Tools
Utilnivo
Estimate flooring square footage, waste, and boxes to order.
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Private on your device
Your information stays on your device and is not uploaded.
Estimate gallons of paint for walls and optional ceiling.
Estimate cubic yards and bag counts for a concrete slab.
Simplify width and height into an aspect ratio.
Convert between common units of length, weight, volume, and temperature.
Calculate percentages, increases, decreases, and ratios.
Calculate exact age in years, months, and days from a date of birth.
Count days, weeks, and months between two dates.
Estimate how much an appliance costs to run.
Calculate room area, add a waste percentage for cuts, and optionally divide by square feet per box to see how many boxes to buy. Runs on your device.
1. Enter room length and width in feet. 2. Set waste percent (10% is common). 3. Optionally enter sq ft per box from the flooring label. 4. Click Calculate. 5. Order one extra box for patterned or diagonal layouts.
Example: a 12×10 ft room with 10% waste needs 132 sq ft—at 20 sq ft per box, that is 7 boxes.
Multiplies room length by width, adds a waste percentage for cuts and mistakes, and optionally divides by square feet per box to estimate boxes to order. Runs on your device.
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Your data stays on your device and is not uploaded.
FAQ
Yes. It is free to use and you do not need to sign in or create an account.
See the privacy note on this page. Many tools run on your device; some heavier file tools may use secure temporary processing when required.
Yes. Open this page on your phone or tablet, enter your inputs, and use the on-screen controls.
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