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Fill Dirt & Top Soil Calculator

Quick answer: One cubic yard of topsoil covers about 100 sq ft at 3 inches deep and weighs roughly 1.1 tons. Enter your area and depth below for exact yards and tons.

Instantly calculate cubic yards, convert to tons, and estimate costs for grading, landscaping, and raised beds.

0.00 Cubic Yards
0.00 Cubic Feet
⚖️ Estimated Weight: 0.00 Tons
Estimated Cost: $0.00
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How to Calculate Fill Dirt and Topsoil

Whether you are leveling a sloped backyard, filling a low spot, or building raised garden beds, ordering dirt is tricky because landscape supply yards sell by the cubic yard, but dump trucks and quarries often weigh out by the ton.

Our Fill Dirt and Top Soil calculator handles the math instantly. Just enter your dimensions in feet and inches, select your material, and we will tell you exactly how many cubic yards you need, how many tons that weighs, and what it will cost.

Fill Dirt vs. Topsoil: Which Do You Need?

Many DIYers use these terms interchangeably, but they are vastly different materials with different weights and uses:

How Much Does a Yard of Dirt Weigh? (Cubic Yards to Tons)

The most common question we get is how to convert cubic yards to tons. Because dirt density changes based on moisture content and clay composition, there is no single perfect number. However, contractors use these industry-standard rules of thumb:

💡 Contractor Pro-Tip: The "Compaction" Factor If you are using fill dirt to build a pad for a shed or a driveway, you must compact it with a mechanical plate tamper in 4-inch "lifts" (layers). Loose fill dirt will settle by up to 20% over the first year. Always order 15% to 20% extra fill dirt to account for compaction!

How much is 1 ton of dirt?

1 ton of dirt is roughly 0.6–0.75 cubic yards, depending on moisture and whether it is screened topsoil or heavier fill. Put another way, one ton spread 3 inches deep covers about 65–80 sq ft.

AmountCubic yardsCoverage at 3 in deepWheelbarrow loads
1 ton of dirt~0.7~75 sq ft~15
3 tons of dirt~2.1~225 sq ft~45
5 tons of dirt~3.5~375 sq ft~75
10 tons of dirt~7.0~750 sq ft~150

What a cubic yard of dirt weighs

A cubic yard of dirt weighs about 2,000 lb (1 ton) when it is dry screened topsoil, and up to 3,000 lb (1.5 tons) as wet fill or clay-heavy material. That range matters more than it sounds: order 10 yards of wet fill and you are asking a truck to carry 15 tons, which is beyond a single tandem load.

Dirt tonnage is weather-dependentThe same pile can differ 20% in weight between a dry week and the day after rain. If you are buying by the ton, a dry delivery gives you more material for the same money.

Looking for something slightly different?

Volume-to-weight questions come in four flavours. If this is not the one you wanted:

Frequently Asked Questions

How many square feet does a cubic yard of dirt cover?

It depends entirely on how deep you spread it.
• At 2 inches deep, 1 cubic yard covers ~162 square feet.
• At 4 inches deep, 1 cubic yard covers ~81 square feet.
• At 6 inches deep, 1 cubic yard covers ~54 square feet.

Will a cubic yard of dirt fit in a standard pickup truck?

Physically, yes, a cubic yard will fit in the bed of a standard full-size pickup truck (like an F-150 or Silverado). However, a cubic yard of wet fill dirt can weigh up to 3,000 lbs (1.5 tons). You must check your truck's "Payload Capacity" sticker on the door jamb. Overloading your suspension can cause severe damage and dangerous braking distances.

How do I calculate fill dirt for a sloped yard?

For a sloped yard, break the area down into a series of triangular or rectangular "blocks." Calculate the average depth of the slope (e.g., if it drops from 12 inches to 0 inches, the average depth is 6 inches). Enter that average depth into the calculator above to get your total cubic yardage.

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How we build these calculators

Founder, JusTheTool · Every formula cited to a published code table or manufacturer spec · Last reviewed August 2026

Every calculator on this site implements formulas taken from published sources — International Residential Code (IRC) tables, ACI and ASTM standards, and manufacturer spec sheets for yields and coverage rates. We list the source behind each figure on our methodology page, so you can check the math rather than take our word for it. These tools are estimating aids, not a substitute for a licensed professional or your local building department.

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Sources for the figures on this page

Every constant this calculator uses and where it comes from, so you can check it rather than take our word for it.

Local codes amend the model IRC and adopt different cycles — your building department governs. Manufacturers revise yields; where your product's data sheet disagrees with a default here, use the product's number. See our full methodology.