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BuildMath

Gravel Driveway Calculator · Free calculator

40x60 Gravel Driveway Calculator

Covering 40' × 60' (2400 sq ft) with 4" of gravel takes 32.59 cubic yards — about 45.63 tons — with 10% extra. A full 3-layer driveway build for 40x60 is 114.07 tons. Depths, layers, truck loads and fabric are below.

Quick answer

4" gravel
32.59 yd³
Weight @ 4"
45.63 tons
3-layer driveway (10")
114.07 tons
Tandem truck loads (15 t)
8
Geotextile fabric
294 sq yd
Est. gravel cost @ 4"
$1,801

▍Gravel Calculator

Material
ft
in
ft
in
in
Waste Factor
$
L = 60' 0"W = 40' 0"D = 4"
Cubic Yards
32.59yd³
incl. 10% waste · Bulk delivery: order 32.75 yd³
Cubic Feet
880.00ft³
Area
2,400.0sq ft
Weight
45.63tons
Weight
91,259lbs
Gravel bags needed
  • 0.5 cu ft bag (~50 lb) (0.5 ft³ yield)1,760

Gravel for 40x60 by depth

2400 sq ft, 10% waste. Crushed stone ≈ 1.4 tons/yd³, ~$55/yd³ delivered.

DepthUseCubic yardsTonsTruck loadsBulk est.
2"Top dressing / refresh16.30 yd³22.812$908
4"Top layer (#57 stone)32.59 yd³45.634$1,801
6"New pad on firm soil48.89 yd³68.445$2,695
8"New driveway on soft soil65.19 yd³91.267$3,589

3-layer gravel driveway build for 40x60

The standard US build for a driveway that won’t rut: big stone base, mid-size stone, fines on top.

LayerDepthCubic yardsTons
#3 stone (1"–2½") base4"32.59 yd³45.63
#57 stone (¾"–1") middle4"32.59 yd³45.63
Crusher run / dense grade top2"16.30 yd³22.81
Total10"81.48 yd³114.07

How the math works

  1. Area: 60 ft × 40 ft = 2400 sq ft
  2. Volume @ 4": 2400 × (4 ÷ 12) = 800.00 cu ft
  3. Add 10%: 800.00 × 1.10 = 880.00 cu ft
  4. Cubic yards: 880.00 ÷ 27 = 32.59 yd³
  5. Tons: 32.59 × 1.4 = 45.63 tons
  6. Truck loads: 114.07 tons ÷ 15 tons per tandem = 8

Trade pro tips

  • At 4" deep, 40x60 takes 45.63 tons — that is more than one tandem dump truck load.
  • Build in layers: 4" of #3 (2"–3") stone, 4" of #57, then 2" of crusher run / dense grade on top.
  • Lay non-woven geotextile over clay soil first — it stops stone from sinking.
  • Crown the driveway ½" per foot so water sheds to the sides.
  • Spread with a box blade and compact each layer before the next.

Frequently asked questions

How many tons of gravel do I need for a 40x60 driveway?

At 4" deep: 45.63 tons. At 6": 68.44 tons. A complete 3-layer driveway (4" #3 + 4" #57 + 2" crusher run) is 114.07 tons. All include 10% extra.

How many cubic yards of gravel for 40x60?

2": 16.30 yd³; 4": 32.59 yd³; 6": 48.89 yd³; 8": 65.19 yd³. 40x60 is 2400 sq ft.

How many truck loads of gravel for a 40x60 driveway?

A tandem dump truck carries about 15 tons. 40x60 at 4" (45.63 t) is 4 loads; the full 3-layer build (114.07 t) is 8 loads.

How much does a 40x60 gravel driveway cost?

Stone alone at 4" is about $1,801 (~$55/yd³). A 3-layer build runs roughly $4,481 in material plus 294 sq yd of fabric; delivery and grading are extra.