Stone Tonnage Calculator

Stone Tonnage Formula:

\[ Tonnage = \frac{Length (ft) \times Width (ft) \times Depth (ft)}{27} \times Density (tons/cu\ yd) \]

Length (ft):

Width (ft):

Depth (ft):

Density (tons/cu yd):

tons/cu yd

Stone Tonnage:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What Is Stone Tonnage Calculation?

Stone tonnage calculation determines the weight of stone material needed for construction or landscaping projects. It converts volume measurements into weight based on the material's density.

2. How Does The Calculator Work?

The calculator uses the stone tonnage formula:

\[ Tonnage = \frac{Length (ft) \times Width (ft) \times Depth (ft)}{27} \times Density (tons/cu\ yd) \]

Where:

\( Length \) — Length of the area in feet
\( Width \) — Width of the area in feet
\( Depth \) — Depth/height of the area in feet
\( Density \) — Material density in tons per cubic yard
27 — Conversion factor (cubic feet to cubic yards)

Explanation: The formula first calculates the volume in cubic feet, converts it to cubic yards, then multiplies by the material's density to get the total weight in tons.

3. Importance Of Accurate Tonnage Calculation

Details: Accurate tonnage calculation is essential for proper project planning, budgeting, material ordering, and avoiding costly overages or shortages of materials.

4. Using The Calculator

Tips: Enter all dimensions in feet, and density in tons per cubic yard. Common stone densities range from 1.2 to 1.8 tons per cubic yard depending on the stone type.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 27 in the formula?
A: There are 27 cubic feet in 1 cubic yard, so dividing by 27 converts cubic feet measurements to cubic yards.

Q2: How do I determine the density of my stone material?
A: Density varies by stone type. Consult your supplier for specific density values. Common densities: granite (1.65-1.75), limestone (1.55-1.65), sandstone (1.35-1.45) tons/cu yd.

Q3: Should I add extra material for compaction/waste?
A: Yes, it's recommended to add 10-15% extra material to account for compaction, settling, and cutting waste.

Q4: Can this calculator be used for other materials?
A: Yes, the formula works for any material where you know the density in tons per cubic yard, including gravel, sand, and soil.

Q5: What if my measurements are in different units?
A: Convert all measurements to feet before using the calculator. For metric measurements, convert to feet or use appropriate conversion factors.