Drywall Mud Calculator

Planning a drywall job and not sure how much joint compound to buy? Use this free drywall mud calculator to estimate exactly how many pounds or buckets you’ll need based on your total square footage and the finish level of your project. Whether you're patching a small room or finishing an entire basement, this tool will give you a clear answer — no guesswork required.

How to Use the Drywall Mud Calculator

1. Enter the total square footage of drywall you’ll be finishing.
   (Tip: Multiply the length × height of each wall and add ceilings if needed.)

2. Select your finish level from the dropdown:

   • Level 1 = Basic taping

   • Level 2 = Light finish

   • Level 3 = Standard finish

   • Level 4 = Smooth walls

   • Level 5 = Full skim coat (most compound required)

3. Click “Calculate” to see the estimated amount of joint compound you'll need in pounds and 5-gallon buckets.

4. Use the link below the result to order drywall mud directly from Home Depot using our recommended products.

💡 Tip: Use this in combination with our Drywall Calculator and Drywall Screw Calculator to fully plan your material needs.