Garden & Landscaping calculator
Pea Gravel Calculator
Work out rounded pea-gravel quantity for paths, play areas or decorative beds from coverage area, layer depth and pea-gravel density.
Work out rounded pea-gravel quantity for paths, play areas or decorative beds from coverage area, layer depth and pea-gravel density. Enter the project measurements first, then replace any default material or performance value with data for the product you intend to use. Check depth and bulk density carefully. Rounded pea gravel can settle and move differently from angular aggregate. Use the supplier's bulk density and the intended finished depth for paths or play areas.
What you need to enter
The Pea Gravel Calculator uses the following project information to calculate the result.
- Length
- Width
- Depth
- Material density
- Extra allowance (%)
Calculator result
Volume and estimated weight
How the Pea Gravel Calculator works
This page is built around volume = L×W×D; mass = volume×density. Applied to pea gravel for paths, play areas and decorative beds, the engine first converts compatible measurements to a common basis and then calculates volume and estimated weight. Verify depth and bulk density before treating the output as a buying, sizing or set-out figure.
Pea Gravel Calculator worked example
Pea Gravel Calculator example: A 6 m × 4 m play or seating area at 50 mm depth needs 1.20 m³ of pea gravel. At 1.6 t/m³ the base weight is about 1.92 tonnes; a 10% allowance gives roughly 2.11 tonnes. This example shows the arithmetic only; on a live job, review depth and bulk density before turning the result into an order or final size.
Important calculation assumptions
For pea gravel for paths, play areas and decorative beds, rounded pea gravel can settle and move differently from angular aggregate. Use the supplier's bulk density and the intended finished depth for paths or play areas.
Frequently asked questions
Which starting measurements make the Pea Gravel Calculator more reliable?
To estimate pea gravel for paths, play areas and decorative beds, measure length, width and finished layer depth. Use a density that matches the material in the condition it will be supplied or compacted. Use measured or manufacturer-specific values wherever they are available.
What if my assumption for depth and bulk density is wrong in the Pea Gravel Calculator?
Rounded pea gravel can settle and move differently from angular aggregate. Use the supplier's bulk density and the intended finished depth for paths or play areas. Treat the assumptions behind depth and bulk density as project-specific in the Pea Gravel Calculator.
What should I check before buying from the Pea Gravel Calculator result?
For the Pea Gravel Calculator, after calculating, order by the supplier's bag or bulk volume/weight and use their pea-gravel density if available. Rounded stone can settle, so avoid ordering to the exact theoretical minimum.