How much crushed gravel do i need

When it comes to a new gravel, slate or other aggregate surface, understanding what quantities you need is very important. Too few aggregates can lead to additional deliveries, which can waste time and money. Too many aggregates lead to wastage too. Are you wondering how much gravel or slate you will require for your project? To help you, we have developed a gravel calculator for you to use.

How much gravel or slate do I need?

Allows us to calculate accurate pricing based on delivery costs

How do you calculate how much gravel is needed?

All you need to know is the size of the area you wish to cover, what depth of gravel or slate you require, and your post-code. The size information helps calculate how much gravel or slate you will require, while your post-code helps us calculate a cost estimate based on delivery. Try it yourself now.

Note: This calculator is only intended as a rough guide to help you approximate the likely volume of gravel, slate or other aggregates needed for your project.

Gravel & Slate Calculator FAQs

How much gravel do I need for my driveway?

Calculating an accurate estimate of how much gravel or aggregate you need for a driveway is simple with our gravel calculator. All you need to know is the desired length and width of the driveway, along with what gravel depth you need. You can get an estimate right now using the calculator above. If you would like a very rough estimate, take a look at our table below.

Coverage Area3cm Depth4cm Depth5cm Depth1m25 Maxi Bags (100kg)5 Maxi Bags (100kg)5 Maxi Bags (100kg)5m21 Bulk Bag / 15 Maxi Bags (850kg / 0.3t)1 Bulk Bag/ 25 Maxi Bags (850kg / 0.5t)1 Bulk Bag/ 25 Maxi Bags (850kg / 0.5t)10m21 Bulk Bag (850kg / 0.85t)1 Bulk Bags (850kg / 0.85t)2 Bulk Bags (1700kg / 1.7t)25m22 Bulk Bags (1700kg / 1.7t)3 Bulk Bags (2550kg 2.55ton)3 Bulk Bags (2550kg)

How much gravel do I need for my garden?

To calculate how much gravel you require for your garden, you must know the approximate area you are working with, and the desired depth. For gardens, this can be trickier as the shape may not be a simple square. We recommend extending this to make it a square, as it is better to order too many aggregates than too few.

What depth of gravel do I need?

You would usually lay a 10mm aggregate at a depth of 30-40mm, but on a driveway this would need to be at least 50mm. A 20mm aggregate would need to be at least 40-50mm deep, and at least 50-60mm on driveways. A larger aggregate will settle and bond together better than smaller ones. The depth you will need to select for your gravel or slate will always depend on the aggregate size and what the surface will be used for.

Example gravel estimate

We estimate an area of 5 metres by 5 metres, with a depth of 40mm, would require approximately three bulk bags of aggregates, slate chippings or gravel.

Can you use the gravel calculator for all aggregates?

Our gravel calculator can be used for most gravel and aggregates featured on our website. The gravel calculator is not for use with Pebbledashing Aggregates, Resin Bonded Aggregates and Rubber Chippings. If you would like to estimate how much of these aggregates you will need for your project, please contact us and we will be able to help you directly.

Do you need assistance?

If you are ordering a large amount of gravel, aggregate or slate maybe you would like to discuss it with us on 01629 630 256, as there may be transport savings to be made or orders over 15 bulk bags, or on a loose tipped load of 20 tonnes or more.

Calculate the amount of gravel or aggregate needed in tons and cubic yards by entering the dimensions below. Estimate material given the length/width/depth, the area, or the volume of material needed.

  • Length, Width & Depth
  • Area & Depth
  • Volume

Calculate Material using Project Dimensions

Length:

Width:

Depth:

Material:

Optionally enter the price per ton or cubic yard

Price:

$

Calculate Material using Area and Depth

Area:

Depth:

Find area using our square footage calculator

Material:

Optionally enter the price per ton or cubic yard

Price:

$

Calculate Material using Volume

Volume:

Find volume using our cubic yards calculator

Material:

Optionally enter the price per ton or cubic yard

Price:

$

Result:

 

Tons

 

Cubic Yards

Cost

 

Total cost

Learn how we calculated this below

How much crushed gravel do i need

How much crushed gravel do i need

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On this page:

  • Gravel Calculator
  • How to Estimate How Much Gravel You Need
  • Step One: Calculate Volume in Yards
  • Step Two: Calculate Gravel Weight in Tons
  • Weight of Gravel and Other Landscaping Materials

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How to Estimate How Much Gravel You Need

Gravel and other landscaping material are often sold either by the ton or the cubic yard, but most suppliers sell large volumes by weight in tons.

To find the weight of material in tons, you’ll need to know the approximate density of the material. Fortunately, there are some common densities that you can use for these calculations. See common weights and densities of landscape material.

How much crushed gravel do i need

Step One: Calculate Volume in Yards

The first step to estimating gravel, sand, or soil is to estimate the volume of material needed. Start by measuring the length, width, and depth of the area you need to fill in the same unit of measurement.

Multiply the length, width, and height together to find the volume of the space. Now, convert the volume to cubic yards.

If the initial measurements were in inches, then convert cubic inches to cubic yards by dividing by 46,656. If the initial measurements were in feet, then divide by 27 to get cubic yards.

As a shortcut, try our cubic yardage calculator to conveniently calculate your volume.

Step Two: Calculate Gravel Weight in Tons

Armed with the volume of material needed in cubic yards, the weight of material in tons can be found by multiplying the volume by the material density. Most gravel weighs 1.4 to 1.7 tons per cubic yard. See below for more common material densities.

For example, let’s find the amount of gravel needed for a space that is 10 feet long, 10 feet wide, and 1 foot deep.

volume = length × width × depth
volume = 10′ × 10′ × 1′ = 100 cu ft
cu yds = 100 cu ft / 27 = 3.7

weight = cu yds × density
weight min = 3.7 × 1.4 = 5.2 tons
weight max = 3.7 × 1.7 = 6.3 tons

Weight of Gravel and Other Landscaping Materials

Refer to the chart below for the weights of common landscaping material, including gravel, rock, sand, and soil.

Weight per cubic yard and cubic meter of gravel and other common landscape materialMaterialWeight per Cubic YardWeight per Cubic MeterPoundsTonsKilogramsMetric TonsGravel (¼” – 2″)2,800 – 3,400 lbs1.4 – 1.7 tons1,660 – 2,020 kg1.66 – 2.02 tonnesRock (2″ – 6″)3,000 – 3,400 lbs1.5 – 1.7 tons1,780 – 2,020 kg1.78 – 2.02 tonnesSand (wet)3,000 – 3,400 lbs1.5 – 1.7 tons1,780 – 2,020 kg1.78 – 2.02 tonnesSand (dry)2,600 – 3,000 lbs1.3 – 1.5 tons1,540 – 1,780 kg1.54 – 1.78 tonnesTopsoil (wet)3,000 – 3,400 lbs1.5 – 1.7 tons1,780 – 2,020 kg1.78 – 2.02 tonnesTopsoil (dry)2,000 – 2,600 lbs1 – 1.3 tons1,190 – 1,540 kg1.19 – 1.54 tonnesRiprap3,400 – 4,000 lbs1.7 – 2 tons2,020 – 2,370 kg2.02 – 2.37 tonnes

You might also be interested in our stone and mulch calculators for estimating other landscape materials.

How do I calculate how much gravel I need?

To measure the driveway in cubic feet, multiply the length by width by depth. For cubic yards, divide the total cubic feet by 27. Because one cubic yard of gravel is equal to 1.13 tons, you can multiply your total cubic yards by 1.13 to convert this measurement to tons.

How many bags of gravel do I need calculator?

How much gravel do I need?.
Measure the length and width of the area in feet and multiply the figures together..
Multiply your area figure by the depth of gravel that you wish to use, ensuring your measurement is also in feet. ... .
You now have a cubic feet volume figure..

How many bags of gravel do I need for 1 cubic yard?

this is how many bags you will need for a cubic yard. 1 cubic foot bag it takes 27 bags to equal a cubic yard. 1.5 cubic foot bag it takes 18 bags to equal a cubic yard. 2 cubic foot bag it takes 13.5 bags to equal a cubic yard.

How much gravel do I need for a 100 square feet?

A ton of gravel will cover approximately 100 square feet, 2 inches deep.