Lawn Mowing Cost per Hour: Real Rates

Lawn mowing typically costs $30 to $60 per hour for a professional service, with most homeowners paying around $40 per hour for a standard residential lawn. The final rate depends on your location, lawn size, terrain, and whether you hire a solo operator or a full-service company.

Formula

The calculator above estimates the volume of soil or mulch needed for a rectangular area. The formula is:

Volume (yd³) = (Length × Width × Depth) / 324

Where:

• Length (ft) – the longer side of the area
• Width (ft) – the shorter side
• Depth (in) – how deep you want the material
• 324 – converts cubic feet to cubic yards (27 ft³ per yd³, but because depth is in inches, you divide by 12 first, so 27 × 12 = 324)

For cubic feet, the formula is simply (Length × Width × Depth) / 12.

Worked Example

Using the default values from the calculator: length = 40 ft, width = 25 ft, depth = 3 in.

1. Calculate the volume in cubic feet: 40 × 25 × 3 / 12 = 3000 / 12 = 250 ft³
2. Convert to cubic yards: 250 / 27 = 9.26 yd³ (rounded to 2 decimals)

The calculator shows 9.26 yd³ and 250 ft³, matching the manual calculation.

When to Use This Calculator

Use this tool when you need to order topsoil, garden soil, compost, mulch, or gravel for a rectangular garden bed, lawn area, or planter. It tells you how much material to buy, so you don’t over-order (wasting money) or under-order (making a second trip).

For irregular shapes, break the area into rectangles, calculate each, and add the volumes together. For circular beds, use a separate circle formula.

How to Read the Result

The first output is in cubic yards, which is how most bulk suppliers sell material. The second output is in cubic feet, useful for bagged purchases (e.g., 2 ft³ bags). If you’re buying bags, divide the cubic feet by the bag size and round up.

For example, if you need 250 ft³ and buy 2 ft³ bags, you need 125 bags. If you order bulk, you’d ask for 9.26 yd³, but suppliers often require a minimum order (e.g., 1 yd³) and may round up to the nearest half yard.

Common Mistakes

• Mixing units – Always convert depth to feet or use the 324 factor. Forgetting to convert inches to feet is the #1 error.
• Rounding too early – If you round the cubic feet before converting, you might get a slightly different yardage. Keep full precision until the end.
• Assuming 27 instead of 324 – The 324 factor already accounts for depth in inches. If you use 27, you’ll get a result that’s 12 times too large.

Limits of the Formula

This formula assumes a perfectly rectangular area with uniform depth. In reality, your bed may have curves, slopes, or varying depth. For a sloped area, measure at the average depth. For irregular shapes, overestimate slightly to avoid a shortage.

The calculator also doesn’t account for compaction – some materials (like soil) settle after watering. It’s often wise to add 10-15% extra for settling, especially for deep fills.

Frequently Asked Questions

How many cubic feet are in a cubic yard?

There are 27 cubic feet in 1 cubic yard (3 ft × 3 ft × 3 ft).

Should I buy soil by the bag or by the yard?

For small areas (under 10 ft³), bags are convenient. For larger areas, bulk delivery is cheaper and more eco-friendly (less plastic). Compare cost per cubic foot: bags often cost $5-10 per ft³, while bulk is $1-3 per ft³.

How deep should I lay topsoil for a new lawn?

For a new lawn from seed, 4-6 inches of topsoil is typical. For overseeding an existing lawn, 1-2 inches is enough.

How much does a yard of soil weigh?

Dry topsoil weighs about 2,000-2,500 lbs per cubic yard, but wet soil can be heavier. Check with your supplier for exact weight, especially if you’re transporting it yourself.

Can I use this for mulch?

Yes, but mulch is usually applied 2-3 inches deep. Use the calculator with your desired depth.

Related

• Overseeding Calculator: Grass Seed for an Existing Lawn
• Lawn Mowing Time Calculator
• Sod Calculator: Square Feet, Rolls and Pallets of Sod

in l | Lawn length | ft | 40 | 0 | 100000
in w | Lawn width | ft | 25 | 0 | 100000
in d | Depth | in | 3 | 0 | 120
out yd | Volume | yd³ | l * w * d / 324 | 2
out ft3 | Volume | ft³ | l * w * d / 12 | 1