How do I calculate how much rock I need?

Option 1: Cubic Yards

1. Step 1: Measure length and width in feet to calculate the area you need to be covered.
2. Step 2: Measure how high you’d like the rock in inches (depth).
3. Step 1: Measure length and width in feet to calculate the area you need to be covered.
4. Step 2: Measure how high you’d like the rock in feet (depth).

How do you calculate gravel fill?

Length in feet x Width in feet x Depth in feet (inches divided by 12). Take the total and divide by 21.6 (the amount of cubic feet in a ton). The final figure will be the estimated amount of tons required.

How many bags of rock do I need?

Divide the cubic yards you need to cover with river rock by the number that one bag of covers. For example, if you need 25 cubic feet of river rock and each bag covers 1/2 cubic foot, buy 50 bags.

How do you measure landscaping rocks?

How to Measure for Landscape Rock

1. Measure the width of the area.
2. Measure the length of the area.
3. Multiply the width by the length.
4. Figure out the depth of your layer of rock.
5. Convert the depth measurement from inches to feet.
6. Calculate cubic feet of the area.
7. Purchase enough landscape rock to cover the area.

How many square feet does a ton of rock cover?

50-75 sq. ft.
One (1) ton of river rock covers approximately a 50-75 sq. ft. area.

How much gravel is in a ton?

A ton of gravel with average-sized pebbles is about 0.705 cubic yards, or 19 cubic feet, assuming it has been screened for debris and contains no leftover dirt, sand, etc.

How many square feet is a ton of river rock?

50-75 sq. ft
One (1) ton of river rock covers approximately a 50-75 sq. ft.

How to calculate the size of a river rock?

The river rock calculator formula for rock under three inches is as follows: (Length x width x depth) / 27. This final number is how many cubic yards of material you will need. Real-World Calculation Example. To put this formula to practical use, follow this example. Imagine that you wish to cover a 10-foot x 10-foot area with 3-inch river rock.

What’s the formula for how much rock do I Need?

So if you’re using recommended depth in the chart above, the basic formula you need is this: L × W = Square footage of coverage area. Square feet of coverage area ÷ coverage area per 1 ton = tons of rock needed.

How to calculate the number of cubic feet for landscape rock?

Divide the number of cubic feet by 27 to determine the number of cubic yards you need for your landscape rock; there are 27 cubic feet in each cubic yard.

How is depth measured in a gravel calculator?

When using our calculator you need to measure the following: Our calculator takes each of the measurements you gave in feet and divides it by three to find how many yards are in the length and width measurements. The depth is converted to yards by dividing it by 36 because that is how many inches are in one yard.

So if you’re using recommended depth in the chart above, the basic formula you need is this: L × W = Square footage of coverage area. Square feet of coverage area ÷ coverage area per 1 ton = tons of rock needed.

The river rock calculator formula for rock under three inches is as follows: (Length x width x depth) / 27. This final number is how many cubic yards of material you will need. Real-World Calculation Example. To put this formula to practical use, follow this example. Imagine that you wish to cover a 10-foot x 10-foot area with 3-inch river rock.

How much rock to cover 360 square feet?

Square feet of coverage area ÷ coverage area per 1 ton = tons of rock needed. Using this formula, you can see that if you’re looking to cover 360 square feet with 1”-3” size rocks, you’re probably going to need 4.5 tons. If you’re using smaller materials, say 3/4”-1”, you may need only 3.6 tons.

How much river rock do you need for a ten foot circle?

For a ten-foot circle, your calculator would look like this: You can also multiply the length and width of the circle and multiply by 0.8 or 80% to reach an approximate but usable area. In this example, your project would need 0.94 tons of river rock.