Method 1: Trace it on a satellite map (fastest)
- Enter your address on Measure The Driveway.
- Tap each corner of the driveway. Add points along curves.
- Add a second area for a parking pad, or cut out anything that isn't getting gravel.
You get square feet and perimeter immediately. Accuracy: usually within a few percent. Trees, shadows, and recent construction can hide edges; if the image looks old or covered, drag the corners or use a tape for the hidden part.
Method 2: Tape measure (most hands-on)
- Measure the length down the middle, street edge to where the driveway ends.
- Measure the width at three points: near the street, the middle, and near the house.
- Average the three widths.
- Length x average width = square feet.
- Measure flares, aprons, and parking spots as separate rectangles and add them up.
Accuracy: good on straight driveways; easy to undercount on curves and flares. Use a 100-foot tape; a 25-foot tape on a long driveway compounds small errors.
Method 3: Walk it with your phone
The Measure The Driveway iPhone app has a Walk It mode: stand at a corner, tap Start, walk the edge, and tap at each turn. The app closes the shape and lays it over the satellite view so you can compare.
Accuracy: good for short and medium driveways and when trees block the satellite view. Phone tracking drifts over long distances, so treat walks over about 300 feet as a check, not the final number.
Which method should I use?
| Method | Time | Typical accuracy | Best for |
|---|---|---|---|
| Satellite trace | 1 to 2 min | Within a few percent | Most driveways, especially long or odd-shaped |
| Tape measure | 10 to 20 min | Good on straight runs | Tree-covered or brand-new driveways |
| Walk It (iPhone) | 5 min | Good under ~300 ft | Checking a trace, tree cover |
Mistakes that lead to ordering short
- Measuring the straight part and forgetting the flare at the street and the apron at the garage.
- Measuring to the lawn edge on one side and the gravel edge on the other.
- Using one width for a driveway that widens near the house.
- Forgetting the extra parking spot or turnaround.
From square feet to gravel
Once you have square feet, the gravel you need depends on depth. A 400 square foot driveway needs about 3.5 tons at 2 inches and about 7 tons at 4 inches. See how much gravel your driveway needs.