Free tools for practical projects
Measure your project.
Know your materials.
Clear quantities for construction and landscaping.
Start with gravel. Keep the assumptions in view.
Available now
Gravel calculator
Turn dimensions or a known volume into cubic yards, US tons and bags. Combine areas, choose a sourced material reference and add your supplier’s quote.
Calculate how much gravel you need →- Rectangle, circle, known area or volume
- US and metric units
- Volume, weight, bags and material cost
- Copy, print and share an estimate
Understand what goes into your estimate.
Material density, depth and extra allowance change the order. Our calculator shows those inputs, explains the formulas and links to source data. Confirm the final specification with your supplier.
Read the calculation methodology ↗From the field notes
What does one ton actually cover?
A depth-by-depth gravel coverage guide with formulas, supplier references and downloadable chart data.
Read the gravel coverage guide →