Driveway Sealer Calculator
A 40 by 12 foot driveway, two coats, at 100 square feet per gallon, needs 9.60 gallons, which is 2 five-gallon pails.
Last updated . Two coats start in the box. The rate starts at one hundred square feet per gallon.
A driveway sealer calculator for a rectangle, round pads, or both. Gallons follow the area, the coat count, and a rate you supply. Five-gallon pails round that gallon line upward.
Asphalt tonnage for a new mat: asphalt calculator. Gravel for an unpaved drive: driveway gravel calculator. Paint on a wall: paint calculator.
Driveway area, gallons, and pails
One hundred square feet per gallon, and two coats, are filled in so the division can be checked. Neither number is taken from a can. A circle is added only when the diameter and the piece count are both above zero.
Results
Area first, then the pail count
A 40 foot by 12 foot rectangle is 480.00 square feet, 44.59 square meters. Two times 480 divided by 100 is 9.60 gallons. Two 5-gallon pails hold 10 gallons, so the order is 2 pails. The 100 and the 2 are examples sitting in the form. Empty the rate and the area remains, while gallons asks you to type a coverage.
A round pad uses the diameter. One 20 foot circle is pi times 10 squared, 314.16 square feet and 29.19 square meters. At the same example rate and two coats, that is 6.28 gallons, still 2 pails. Leave the diameter at 0 or the piece count at 0 and the round part is left out. There is no price on this page.
Worked drives
| Shape | Coats | ft² per gallon | Gallons | 5-gal pails |
|---|---|---|---|---|
| 40 × 12 ft | 2 | 100 | 9.60 | 2 |
| 40 × 12 ft | 1 | 100 | 4.80 | 1 |
| 20 ft circle | 2 | 100 | 6.28 | 2 |
| 40 × 12 ft | 2 | 90 | 10.67 | 3 |
Sealer questions
How many gallons does the opening driveway use?
Leave the rectangle at 40 ft by 12 ft, circle diameter at 0, circle pieces at 0, coats at 2, and square feet per gallon at 100. Area reads 480.00 ft² · 44.59 m². Gallons reads 9.60 gal. 5-gal pails reads 2.
Why are the coats and the coverage filled in?
Two coats and 100 square feet per gallon are labeled examples so 480 × 2 ÷ 100 can be checked. They are not a claim about any sealer. Replace 100 with the square feet printed on the pail you buy.
What does one 20 foot circle use?
Set length and width to 0, diameter to 20 ft, and circle pieces to 1. Leave coats at 2 and square feet per gallon at 100. Area reads 314.16 ft² · 29.19 m². Gallons reads 6.28 gal. 5-gal pails reads 2. The circle area is pi times the radius squared.
What if the rate box is emptied?
Empty the square feet per gallon field and put the rectangle back to 40 ft by 12 ft, with circle pieces at 0. Area reads 480.00 ft² · 44.59 m². Gallons reads Enter a coverage. 5-gal pails reads —.
What does a single coat use?
Type 100 back into square feet per gallon and set coats to 1, with the 40 by 12 rectangle. Gallons reads 4.80 gal. 5-gal pails reads 1.
What if coverage is 90 square feet per gallon?
Set coats back to 2 and square feet per gallon to 90 on the 40 by 12 rectangle. Gallons reads 10.67 gal. 5-gal pails reads 3. The pail count rounds 10.67 up by 5.