# Crushed Stone Calculator

URL: https://speedycalculator.com/calculators/construction/crushed-stone/
Last updated: 2026-10-25

> The crushed stone calculator works out how much crushed stone #57 (¾–1 in) you need from the area and depth, in cubic yards, cubic metres, tons and tonnes, and estimates the cost from a price per ton or per cubic yard.

## Inputs

- Material
- Custom density (kg/m³, lb/ft³, g/cm³, lb/yd³)
- Area shape
- Length (or diameter) (ft, m, in, yd, cm)
- Width (ft, m, in, yd, cm)
- Depth (in, cm, mm, ft, m)
- Extra for waste and compaction (%)
- Priced by
- Price per weight (/US ton, /t, /lb, /kg)
- Price per volume (/yd³, /m³, /ft³)

## Results

- Area
- Volume needed
- Weight needed
- Estimated cost

## Formula

```
Volume = area × depth × (1 + waste)
Weight = volume × density
Cost = weight × price per ton (or volume × price per yd³)
```

## Explanation

Crushed stone is quarried rock broken into angular pieces and graded by size. The sharp edges lock together, which makes it the material of choice for driveway bases, French drains, footings and under-slab layers. Choose the grade you are buying – stone with fines (#411, screenings) packs denser and weighs more per cubic yard than clean washed stone.

### How to use the Crushed Stone Calculator

- **Material**
- **Custom density**
- **Area shape**
- **Length (or diameter)**
- **Width**
- **Depth**
- **Extra for waste and compaction**
- **Priced by**
- **Price per weight**
- **Price per volume**
- Every result field is editable: type into **Volume needed** or any other result and **Depth** plus every other field update to match.

Results update as you type, and every field accepts the units shown in its menu.

### How it works

The calculator finds the area of your rectangle, circle or triangle, multiplies it by the depth and adds the waste allowance to get the volume. Multiplying by the density of the chosen material gives the weight, and the price you enter turns either one into a cost.

### Densities used

Materialkg/m³lb/ft³US tons per yd³Crushed stone #57 (¾–1 in)1,602100.01.35Crushed stone #3 (1–2 in)1,58098.61.33Crushed stone #1 (2–4 in)1,55096.81.31Crushed stone #411 (with fines)1,900118.61.60Crushed stone #10 / screenings1,750109.21.47Crushed granite1,650103.01.39Crushed limestone1,55497.01.31Crushed concrete (recycled)1,900118.61.60

### Gravel sizes

NameSizeTypical use#1 (rip-rap base)2–4 inBase of new driveways#31–2 inDrainage, driveway base#57¾–1 inDriveways, drainage, concrete aggregate#67¾ in and smallerConcrete mix, base layers#8 / pea gravel⅜ inPaths, play areas, pipe bedding#10 / screeningsdust to ¼ inPaver base, fines for compaction#411#57 + dustTop layer that packs hard

### Good to know

A U.S. (short) ton is 2,000 lb; a metric tonne is 1,000 kg (2,204.6 lb). Quarries in the U.S. sell by the short ton, so check which one your quote uses.

### Tips for an accurate estimate

- Plan driveways and paths in layers – a compacted base of larger stone does most of the structural work.
- Add 10–25% for compaction: loose stone shrinks once it is rolled or driven on.
- Ask the quarry whether prices are per US ton, metric tonne or cubic yard before comparing quotes.
- Grade surfaces at 1–2% so water runs off rather than soaking into the base.

### Common mistakes to avoid

- Skipping the base layer or geotextile on soft soil, which leads to ruts and potholes.
- Using rounded stone (pea gravel, river rock) on surfaces that carry vehicles.
- Ordering compacted volume when the supplier delivers loose material.

### Inputs explained

FieldWhat to enterMaterialChoose one: Crushed stone #57 (¾–1 in), Crushed stone #3 (1–2 in), Crushed stone #1 (2–4 in), Crushed stone #411 (with fines) …Custom densityUnits: kg/m³, lb/ft³, g/cm³, lb/yd³Area shapeChoose one: Rectangle / square, Circle (length = diameter), Triangle (length = base, width = height)Length (or diameter)Units: ft, m, in, yd, cmWidthUnits: ft, m, in, yd, cmDepthUnits: in, cm, mm, ft, mExtra for waste and compactionIn %Priced byChoose one: Weight (per ton / tonne), Volume (per yd³ / m³)Price per weightUnits: /US ton, /t, /lb, /kgPrice per volumeUnits: /yd³, /m³, /ft³

## Worked example

Inputs — Material: Crushed stone #57 (¾–1 in); Custom density: 1,600 kg/m³; Area shape: Rectangle / square; Length (or diameter): 50 ft; Width: 12 ft; Depth: 4 in; Extra for waste and compaction: 10 %; Priced by: Weight (per ton / tonne); Price per weight: $45 /US ton; Price per volume: $60 /yd³.

Results — Area = 600 ft²; **Volume needed = 8.148 yd³**; Weight needed = 11.001 US ton; Estimated cost = $495.05.

## FAQ

**How much is a ton of crushed stone?**
Prices vary widely by region and grade; enter your local quote as a price per ton or per cubic yard.

**How much does a cubic yard of #57 stone weigh?**
Around 2,700 lb (1.35 US tons).

**How deep should crushed stone be for a driveway?**
4–6 in of base stone plus 2–3 in of top stone; heavy vehicles need 8–12 in in total.

**What formula does the Crushed Stone Calculator use?**
Volume = area × depth × (1 + waste).


## Sources

- [The Engineering ToolBox – Bulk densities of materials](https://www.engineeringtoolbox.com/density-materials-d_1652.html)