Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Gravel Tonnage Calculator

Calculates the tonnage of gravel required to cover a given area at a specified depth. Ideal for driveways, pathways, and landscaping projects where you need to order aggregate by weight.

Coverage Area (m²)

Gravel Depth (m)

Gravel Type

Fill in the required fields to see your result.

Construction

Paint Coverage Calculator

Calculate the exact number of paint gallons required for any surface area, factoring in multiple coats and a configurable waste allowance. Useful for both DIY painters and professional contractors bidding jobs.

Total Wall Area (sq ft)

Doors & Windows Area (sq ft)

Number of Coats

Paint Coverage per Gallon

Waste Buffer

Fill in the required fields to see your result.

Key differences

	Gravel Tonnage Calculator	Paint Coverage Calculator
Category	Construction	Construction
Inputs required	3	5
Result	Gravel Required (tonnes)	Paint Needed (gallons)
What it does	Calculates the tonnage of gravel required to cover a given area at a specified depth. Ideal for driveways, pathways, and landscaping projects where you need to order aggregate by weight.	Calculate the exact number of paint gallons required for any surface area, factoring in multiple coats and a configurable waste allowance. Useful for both DIY painters and professional contractors bidding jobs.