Crushed Stone Calculator
Enter the size of the area and a depth and get the crushed stone to order in tons or cubic yards, at a weight you can see and change, rounded up once to the supplier's step.
A ready-made setup of the Gravel Calculator.
Estimates for planning, not professional advice. Read the full notice.
The drawing did not open. Length and width are still here.
Area: shape and size
Skip the drawingDrag a round corner to move it. The small hollow diamond on a side is its curve handle: drag it across the side to curve the side (it is not a corner). To add a corner (a new point), tap the side itself, then choose Add a point here. Tapping a corner or a side opens its actions. Drag empty space to move the view; pinch, or Ctrl and the mouse wheel, to zoom. The keys are listed under Keys.
Keys
- Tab
- next corner; each says how far it is from corner 1
- Arrow keys on a corner
- move it one square; ten with Shift; 1/16 in with Alt
- Delete or Backspace
- remove the corner; its two sides join in one straight side
- + on a corner
- add a corner halfway along the next side
- Arrow keys on the drawing
- move the view; farther with Shift
- + and - on the drawing
- zoom in and out
- 0 on the drawing
- show the whole shape
- Ctrl+Z (Cmd+Z on a Mac)
- undo, except inside a typed field (it keeps its own)
- Ctrl+Shift+Z or Ctrl+Y
- redo
- Escape while dragging
- put it back where it was
- Enter on a corner or side
- go to its actions
- Escape in the actions
- close them and go back to the drawing
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- Area
- 144 ft²
- Perimeter
- 48 ft
- Cut-out edges
No area until the shape is fixed.
Estimate for planning, from what you entered and the product data shown. Check product labels and your supplier before you buy.
Shape: Rectangle Change
Sides
Corners
Cut-outs
Feet and inches, like 12' 6"
Example: a crushed stone area
3 tons to order (2.7 tons exact)
- Volume in the area 48 ft³
- Cubic yards to order 1.78 yd³
- Cubic yards at the supplier's step 2 yd³
- Tons at the weight above 2.7 tons
- Tons at the supplier's step 3 tons
Your project
Enter a size to see your total.
Each product is rounded up once for the whole project, so the total can be less than the items bought alone added together. A line counted from a cut layout (sheets, boards or tiles laid out piece by piece) is counted for each item and added.
Shopping list
| Item | Size | Buy |
|---|---|---|
| Crushed stone by the ton | 1 ton | 3 tons |
Save on this device
Saved projects
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Worked example: a crushed stone area
Show the working
- Area 12 ft × 12 ft = 144 ft²
- Volume at the depth 144 ft² × 4 in = 48 ft³
- Add the waste allowance, once 48 ft³ + 0 % waste = 48 ft³
- Cubic yards: divide by the cubic feet in a yard 48 ft³ ÷ 27 ft³ in a yd³ = 1.78 yd³
- Tons: multiply by the weight of a cubic yard 1.777778 yd³ × 1.5 ton/yd³ = 2.7 tons
- Round up once, to the supplier's ton step 2.7 tons = 3 tons
Assumptions
The figures behind the example. Sourced figures link to their source below; a default is a starting value to check against your label or supplier.
| Assumption | Value | Details and changes |
|---|---|---|
| Gravel, crushed stone or No. 57 stone weight | 1.5 ton/yd³[1][2] | |
| Default Penn State's calculator uses 1.50 tons per loose yard for AASHTO 57. Sources differ, so the other figures are named as options. | ||
| Landscape waste or overage | 0% | |
| Default No silent overage. Check your label or supplier. | ||
| Supplier's smallest yard step | 0.5 yd³ | |
| Default Suppliers sell bulk in steps. Check your label or supplier. | ||
| Supplier's smallest ton step | 1 ton | |
| Default Suppliers sell by the ton in steps. Check your label or supplier. | ||
Feet and inches, like 12' 6"
Crushed stone in tons by area and depth
Tons of crushed stone for three area sizes at three depths, at the weight in the assumptions, before any step
| Area | 2 in deep | 4 in deep | 6 in deep |
|---|---|---|---|
| 10 ft × 10 ft | 0.93 ton | 1.85 ton | 2.78 ton |
| 12 ft × 12 ft | 1.33 ton | 2.67 ton | 4 ton |
| 20 ft × 20 ft | 3.7 ton | 7.41 ton | 11.11 ton |
Each cell is the exact weight at the starting weight, so a ton step rounds it up once at order time.
Weights from the sources
Weight of a cubic yard of gravel or crushed stone as each source gives it
| Source and case | Weight per cubic yard |
|---|---|
| Penn State, AASHTO 57 stone, loose, as shipped | 1.5 ton/yd³ |
| Ohio DOT, gravel size 57, loose | 2,500 lb/yd³ |
| Ohio DOT, limestone size 57, loose | 2,400 lb/yd³ |
| MoDOT, granite or limestone, loose: from | 2,410 lb/yd³ |
| MoDOT, granite or limestone, loose: to | 2,590 lb/yd³ |
| New Mexico EMNRD, gravel from a quarter inch to two inches (the source does not say loose or compacted) | 1.42 ton/yd³ |
| Caltrans, loose | 1.5 ton/yd³ |
The calculator starts from the Penn State figure. The sources differ, and one of them says nothing about loose or compacted, so each row names its own wording. The Caltrans compacted figure is left out because an order is for loose material.
Questions
How far does a ton of crushed stone go?
The tons grid gives the weight for three areas and three depths; divide your own area and depth the same way, or enter them above and read the tons.
Is 57 stone the same as three-quarter inch crushed stone?
Suppliers use both names for their own products, and the calculator takes your supplier's weight rather than a name. The weights table lists what each source gives, and the number in the assumptions is yours to change.
Sources (6)
-
DGLVR Materials Calculator, data file road-aggregate-fill-materials.xml (opens in new tab), Penn State Center for Dirt and Gravel Road Studies, data entry dated Monday, March 20, 2017 (value is in the calculator's data file, not in prose).
Code or government.
“Transcribed from the entry AASHTO 57 (PennDOT 2B) of the calculator's data file: 1.50 tons per cubic yard.”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 1) -
DGLVR Materials Calculator (opens in new tab), Penn State Center for Dirt and Gravel Road Studies, web page (page text, undated; calculator data dated March 20, 2017).
Code or government.
“the estimates generated will always appear as cubic yards of loose material and US tons as-shipped (loose) ... The volume to weight conversion factors used for the calculator are averages from across PA, based on observations by Center field staff.”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 2) -
Construction and Material Specifications, Item 410.06, Table 410.06-1 (opens in new tab), Ohio Department of Transportation, 2023 C&MS (January 1, 2023; online version 07/17/2026); the PDF prints the cubed unit as a replacement glyph, restored here as yd3.
Code or government.
“The Department will measure the cubic yards of aggregate used loose in the vehicle at the point of delivery or calculate it by converting from weight using the following conversion factors: ... Gravel, Size No. 4 and 57 2500 lb/yd3 ... Limestone, Size No. 4 and 57 2400 lb/yd3”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 3) -
Highway Maintenance Tables and Conversion Factors, Compacted and Loose Weights of Various Materials (opens in new tab), Missouri Department of Transportation (Engineering Policy Guide attachment; the table is a Michigan LTAP table hosted by MoDOT), file modified December 12, 2024; PDF p. 5, a rotated page; the loose rows were read from the PDF text with glyph positions (HC1, November 12, 2026).
Code or government.
“LOOSE WEIGHTS OF VARIOUS MATERIALS ... Granite or Limestone 89 2,410 67 ... 93 2,500 69 ... 96 2,590 72 ... Sand 97 2,630 73 ... 110 2,960 82”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 4) -
Conversion Factors for Construction Materials and Common Minerals (opens in new tab), New Mexico Energy, Minerals and Natural Resources Department, Mining and Minerals Division, undated one-page table, adapted from BLM H-3890-1 Handbook for Mineral Examiners.
Code or government.
“To convert cubic yards to short tons, multiply the commodity production cubic yardage by the conversion factors listed below. ... Base course 1.25 ... Fill Dirt 0.8 ... Gravel ¼" – 2" 1.42 ... Sand 1.45 ... Top Soil 0.8”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 5) -
Maintenance Manual Volume One, Appendix, Section 20 Aggregate per Mile (opens in new tab), California Department of Transportation, July 2014.
Code or government.
“Quantities based on-- 1.5 tons = 1 cu. yd. ... Loose tons = 1.5 X actual yardage. Compact tons = 2.0 X actual yardage.”
Checked November 12, 2026. Figures and codes change; verify with the source. Back to where this is used (Source 6)
These are summaries of what the sources say, not professional advice. Codes and product data change. Check with your building department and the product label about your own project.
Sources
- [1] Penn State Center for Dirt and Gravel Road Studies, DGLVR Materials Calculator, data file road-aggregate-fill-materials.xml. Checked November 12, 2026. https://dirtandgravel.psu.edu/wp-content/themes/Avada-Child-Theme/road-aggregate-fill-materials.xml
- [2] Penn State Center for Dirt and Gravel Road Studies, DGLVR Materials Calculator. Checked November 12, 2026. https://dirtandgravel.psu.edu/general-resources/dglvr-materials-calculator/
- [3] Ohio Department of Transportation, Construction and Material Specifications, Item 410.06, Table 410.06-1. Checked November 12, 2026. https://www.dot.state.oh.us/Divisions/ConstructionMgt/OnlineDocs/Specifications/2023_CMS_07172026_for_web_Letter%20size.pdf
- [4] Missouri Department of Transportation (Engineering Policy Guide attachment; the table is a Michigan LTAP table hosted by MoDOT), Highway Maintenance Tables and Conversion Factors, Compacted and Loose Weights of Various Materials. Checked November 12, 2026. https://epg.modot.org/files/a/ad/Highway_Maintenance_Tables_and_Conversion_Factors.pdf
- [5] New Mexico Energy, Minerals and Natural Resources Department, Mining and Minerals Division, Conversion Factors for Construction Materials and Common Minerals. Checked November 12, 2026. https://www.emnrd.nm.gov/mmd/wp-content/uploads/sites/5/ConvFctrs.pdf
- [6] California Department of Transportation, Maintenance Manual Volume One, Appendix, Section 20 Aggregate per Mile. Checked November 12, 2026. https://dot.ca.gov/-/media/dot-media/programs/maintenance/documents/33-appendix-july-2014-a11y.pdf