UseCalcPro
Home
Math
Percentages, fractions, ratios
Finance
Loans, mortgages, investments
Health
BMI, calories, fitness metrics
Construction
Materials for building projects
Auto
Car payments, fuel, insurance
Pets
Pet age, feeding, housing
Garden
Lawn care, irrigation, compost
Crafts
Yarn, fabric, candle making
Food & Brewing
Bread, dough, brewing, recipes
Tools
Age, date, GPA, converters
Blog
  1. Home
  2. Construction

Gravel Calculator

Calculate gravel for driveways and landscaping

Gravel Needed

3.33 tons

Area

200.0 sq ft

Cubic Yds

2.47

Cost

$167

Units

Typical: 100 lbs/cu ft

$
Weight

3.33 tons

Cubic Yards

2.47

Area

200.0 sq ft

Est. Cost

$167

Volume Breakdown

Area200.0 sq ft
Depth4 in
Volume2.47 yd³
Cubic Feet66.7

Material Summary

Weight (tons)3.33
Volume (yd³)2.47
Density100 lbs/cu ft
Estimated Cost$167

Frequently Asked Questions

Q

How do you calculate gravel needed?

Gravel needed = Length × Width × Depth (in feet) ÷ 27 = cubic yards. Then multiply by density to get tons. For 200 sq ft at 4" deep: 200 × 0.33 ÷ 27 = 2.5 cubic yards ≈ 3.4 tons.

Q

How many tons of gravel in a cubic yard?

Gravel weighs about 1.35-1.5 tons per cubic yard depending on type. Pea gravel: 1.35 tons/yard, Crushed stone: 1.4 tons/yard, River rock: 1.5 tons/yard.

Q

How deep should gravel be for a driveway?

Driveway gravel should be 4-6 inches deep. Base layer: 4" of crushed stone, top layer: 2-3" of finer gravel. Total depth of 6-9 inches provides stable surface.

Q

How much does gravel cost per ton?

Gravel costs $30-75 per ton delivered, depending on type. Pea gravel: $30-50/ton, Crushed stone: $35-60/ton, Decorative gravel: $50-100/ton. Delivery adds $50-100.

Example Calculations

1Driveway Gravel (20 × 10 ft, 4 inches deep)

Inputs

Length20 ft
Width10 ft
Depth4 inches
Density100 lbs/cu ft
Cost per Ton$50

Result

Gravel Needed3.33 tons
Area200.0 sq ft
Volume66.7 cu ft
Cubic Yards2.47
Estimated Cost$167

Area = 20 × 10 = 200 sq ft. Volume = 200 × (4/12) = 66.67 cu ft. Cubic yards = 66.67 / 27 = 2.47. Tons = (66.67 × 100) / 2000 = 3.33 tons. Cost = 3.33 × $50 = $167.

2Patio Base (15 × 12 ft, 6 inches deep)

Inputs

Length15 ft
Width12 ft
Depth6 inches
Density100 lbs/cu ft
Cost per Ton$50

Result

Gravel Needed4.50 tons
Area180.0 sq ft
Volume90.0 cu ft
Cubic Yards3.33
Estimated Cost$225

Area = 15 × 12 = 180 sq ft. Volume = 180 × (6/12) = 90 cu ft. Cubic yards = 90 / 27 = 3.33. Tons = (90 × 100) / 2000 = 4.50 tons. Cost = 4.50 × $50 = $225.

Formulas Used

Volume

Volume (cu ft) = Length × Width × (Depth / 12)

Calculates volume in cubic feet from area dimensions and depth in inches.

Where:

Length= Area length in feet
Width= Area width in feet
Depth= Gravel depth in inches (divided by 12 to convert to feet)

Cubic Yards

Cubic Yards = Volume (cu ft) / 27

Converts cubic feet to cubic yards (27 cu ft per yard).

Where:

27= Cubic feet in one cubic yard

Tons Needed

Tons = (Volume × Density) / 2000

Converts volume and density to US tons.

Where:

Density= Material density in lbs per cubic foot (default 100)
2000= Pounds per US ton

Understanding Gravel Calculations

Gravel is sold by the ton or cubic yard. Calculate volume first, then convert to weight using material density.

Different gravel types have different densities. Crushed stone is denser than pea gravel or decorative rock.

Order 10% extra to account for settling, spillage, and variations in coverage.

Related Resources

  • Concrete Calculator

    Calculate concrete needed

  • Paint Calculator

    Calculate paint needed

  • Flooring Calculator

    Calculate flooring materials

Related Calculators

Concrete Calculator

Calculate concrete

Foundation Calculator

Calculate foundation

More Construction Calculators

Calculate materials

View All

Last Updated: Feb 12, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

UseCalcPro
FinanceHealthMath

© 2026 UseCalcPro