Share this page
Copy the link or send it to your audience.
Point your camera at the QR code to open this page on any device.
Gravel Calculator
Order the right amount of gravel for your project.
For a 1:2:4 mix, gravel is 4 of 7 parts. Gravel volume = mix volume × 4/7. Weight uses ≈1500 kg/m³.
How it works
For a 1:2:4 mix, gravel is 4 of 7 parts. Gravel volume = mix volume × 4/7. Weight uses ≈1500 kg/m³.
Worked example
2 m³ of 1:2:4 mix needs 2 × 4/7 ≈ 1.14 m³ of gravel ≈ 1.7 tons.
Recommendations
- Use 5/20 mm gravel for standard concrete
- For drainage, larger graded stone works better
- Add 5% for compaction on driveways
Tips & advice
- Wash gravel if it contains dust or clay
- Lay a geotextile under driveways to prevent sinking
- Buy rounded or crushed per your project needs
Fuel Consumption Calculator
Find your real fuel consumption from a full tank test.
Fuel Cost Calculator
Know the cost of your trip before you leave.
Weeks Between Dates Calculator
Find out exactly how many weeks separate two dates.
Months Between Dates Calculator
Know how many months separate any two dates.
Gravel Calculator
Order the right amount of gravel for your project.
Use the calculatorInvoice Generator FAQs
Yes, all 20 home calculators are 100% free, private and run entirely in your browser. No account needed.
They use standard industry formulas. Always round up for materials and confirm with a professional for structural work.
The calculators use metric units (meters, liters, m³). Convert imperial measurements beforehand if needed.
No. Calculations happen instantly in your browser and nothing is sent to any server.
More Free Tools
Explore the whole collection — no signup, 100% free & private.