How to use it
- Enter fence length and height in feet
- Add gate area and number of coats
- Set paint coverage or keep the default 350‑400 sq ft per gallon
- Click Calculate to see gallons needed
This Fence Paint Calculator lets you instantly see how many gallons of latex paint you'll need for any fence project. You simply input the linear length, height, any gate area, and how many coats you plan to apply. The tool multiplies the surface area by the number of coats and compares it to the typical coverage of 350‑400 sq ft per gallon, then rounds up to the nearest whole gallon. Knowing the exact volume helps you budget, avoid running out mid‑job, and prevents over‑buying. The result appears as a single number of gallons; use that to order paint, schedule trips to the store, or compare product prices. No guesswork, just a clear, actionable number. You can also adjust the coverage range if you are using a high‑performance paint that spreads farther, ensuring the estimate stays realistic. The calculator works on any device, so you can plan from your phone while standing by the fence.
Pro tips
- Add 10% extra for brush waste and surface texture
- Round up to the next whole gallon; you can always keep leftovers
- Buy paint in gallons, not quarts, for cost efficiency on large jobs
- Measure gate openings separately and include them in the total area
Real-life examples
- Homeowner repainting a 150‑ft backyard fence with two coats
- Landscaper estimating paint for a new 200‑ft garden fence with a gate
- DIY enthusiast planning a weekend fence makeover and needing exact paint quantity
Case study
Sarah measured her 180‑ft fence (6 ft high) with a 15‑ft² gate, chose two coats, and entered the numbers. The calculator told her she needed 7 gallons, so she ordered exactly that amount and finished without a single trip back to the store.