Gravel Calculators
Gravel Walkway Calculator
A path is a long, narrow strip — enter it as length × width. Pre-set to pea gravel at 2½ inches, the standard walking surface; the result includes bag counts, since many paths are weekend bag-and-wheelbarrow projects.
A note on this estimate
Rigid edging is assumed, and the landscape fabric layer is not part of the quantity.
Last updated: 8 November 2026 · Report an error
Walkway specifics
Paths differ from patios in geometry more than materials: long and narrow means modest volumes that often fall near the bag/bulk crossover. A 3-foot-wide, 40-foot path at 2½ inches of pea gravel is 120 ft² × 0.208 ft = 25 ft³ = 0.93 yd³ ≈ 1.4 tons — about 50 bags, which is well past the half-yard point (roughly 20–30 bags) where bulk usually starts winning — so at this size a small bulk delivery is the better buy.
Winding paths: either approximate with the total-area input, or run each straight section separately and add. For a path that will carry wheelbarrows or frequent foot traffic, #67 crushed stone over a 2" compacted base wears better than round pea gravel.
Walkway depths by surface and use
A walkway is two layers pretending to be one: a base that keeps the path level, and a surface chosen for feet. The surface depth has a failure mode in both directions — too thin and the fabric or soil ghosts through within a season; too thick and round stone becomes unstable to walk on, shifting under every step like a beach.
| Path type | Base | Surface | Surface material |
|---|---|---|---|
| Garden path, light foot traffic | 2 in compacted crusher run | 2 in | Pea gravel or #67 |
| Main garden / side path | 3 in compacted crusher run | 2–3 in | Pea gravel, edged both sides |
| Utility & access path (bins, bikes, wheelbarrows) | 3–4 in compacted crusher run | 2 in | Angular crushed stone — round pea rolls under wheels |
| Stepping-stone path | 2 in compacted base under each stone | 1–2 in between stones | Pea gravel as the infill |
Worked example: a 3 ft wide, 30 ft path with a 3-inch pea gravel surface is 90 ft² × 0.25 ft = 22.5 ft³ = 0.83 yd³ ≈ 1.24 tons of pea gravel — or 45 of the standard 0.5 ft³ bags, and at that size a small bulk delivery is almost always the better buy. Measure a bending path as a series of short rectangles and add them, rather than forcing one long measurement.
Where walkways go wrong: no edging, so the surface migrates into the lawn a handful at a time; pea gravel laid 4 inches deep "for softness", which walks like a treadmill; and fabric skipped on soft soil, so the first wet month pumps mud up through the stone. The surface material choice matters more than the depth: angular stone locks and carries wheelbarrow traffic, round stone is kind to bare feet and hopeless under wheels.
Walkway gravel FAQ
How wide should a gravel path be?
A comfortable single-person garden path is 3–4 feet wide; two people side by side want 5–6 feet. Wider paths need proportionally more gravel — the calculator turns any width and length into quantities.
How deep should gravel be for a walkway?
Plan on two layers: 2–3 inches of compacted base plus 2–3 inches of surface stone — 4–6 inches in total. A single 2–3 inch layer of pea gravel or crushed stone over landscape fabric is the light-duty minimum. Deeper than 3 inches of loose surface feels like walking on a beach; shallower than 2 inches lets fabric show through as gravel migrates.
What keeps gravel in place on a path?
Rigid edging (steel, brick, stone, paver) plus landscape fabric underneath. Without edging, round gravel spills into lawns and beds; without fabric, it sinks into soft soil over a season.
How do I measure a curved path?
Break the curve into a series of short straight sections, measure each as its own rectangle, and add the areas together. Add about 5% for the overlap waste a winding layout creates — that allowance is not built into the result.
Do I need a compacted base under a gravel walkway?
For light foot traffic on firm ground, the surface layer can go straight over landscape fabric — but it will not stay level for long. A thin compacted base, as in the build-ups table above, is what keeps a path even and stops the surface stone mixing into the soil; on soft or clay soil, or under stepping stones, it is not optional.