• Square Feet to Cubic Yards Calculator
    Convert square feet and a depth to cubic yards instantly. Perfect for ordering concrete, gravel, mulch, soil and other bulk fill materials.
  • French Drain Calculator
    Calculate how much gravel a French drain needs in cubic yards. Enter trench length, width, and depth to estimate volume and gravel tonnage.
  • Limestone Calculator
    Calculate how many tons of crushed limestone you need. Enter length, width and depth to get volume in cubic yards and total tonnage.
  • Pyramid Volume Calculator
    Enter base length, base width, and height to calculate a right rectangular pyramid’s volume, plus base area and total surface area in seconds.
  • Rip Rap Calculator
    Calculate how many tons and cubic yards of rip rap you need for erosion control. Enter length, width, depth and stone density to estimate material.
  • River Rock Calculator
    Calculate how many tons and cubic yards of river rock you need. Enter length, width and depth to estimate landscaping rock and cost-planning quantities.
  • Sand Calculator
    Calculate how many tons and cubic yards of sand you need. Enter length, width and depth to estimate sand for paths, sandboxes and base fill.
  • Sonotube Concrete Calculator
    Calculate how much concrete you need to fill a Sonotube. Enter tube diameter and height to get cubic yards, cubic feet, and the number of bags.
  • Obliquely Cut Cone (Truncated Cone with Slanted Top) Volume Calculator
    Compute the volume, slanted cut-section area, and base area of a right circular cone sliced by an inclined plane. Pure solid geometry, any consistent unit.
  • Earthwork Soil Volume Conversion Calculator
    Convert earthwork soil volume between bank (in-situ), loose (excavated) and compacted states using swell factor L and compaction factor C, in cubic meters.
  • Volume of a Partial (Vertically Cut) Right Circular Cone
    Compute the volume, base segment area, lateral and section area of a right circular cone sliced by a vertical plane, from radius r, height h and segment height a.
  • Asphalt Calculator
    Free asphalt calculator estimates tons of hot-mix asphalt needed by length, width, and thickness using a 145 lb/ft³ density. Fast and accurate.
  • Crushed Stone Calculator
    Estimate how many tons and cubic yards of crushed stone you need for driveways, patios and base layers from length, width and depth.
  • Gravel Driveway Calculator
    Calculate how much gravel you need for a driveway in tons, cubic yards, cubic feet and pounds. Enter length, width, depth and gravel density.
  • Pond Volume Calculator
    Calculate pond volume in US gallons, liters and cubic feet from length, width and average depth. Free, instant pond water capacity calculator.
  • Pool Volume Calculator
    Calculate your swimming pool volume in US gallons, cubic feet and liters from length, width and average depth. Free, fast and accurate.
  • Volume of a Partially Filled Horizontal Cylinder
    Compute the volume, cross-section area, curved bottom area and flat top area of a partially filled horizontal cylinder (cylindrical segment) from radius, fill height and length.
  • Volume of a Triangular Prism Calculator
    Calculate the volume of a triangular prism from the triangle base, height, and prism length using V = ½ · b · h · L. Fast, accurate, free.
  • Volume of a Rectangular Prism Calculator
    Calculate the volume of a rectangular prism (box) instantly using V = l × w × h. Also returns surface area. Free, accurate, and works with any units.
  • Truncated Cone Calculator
    Calculate the volume, slant height, lateral and total surface area of a truncated cone (frustum) from its two radii and height. Free online tool.
  • Volume of a Hexagonal Pyramid Calculator
    Calculate the volume of a regular hexagonal pyramid from its base edge length and height using V = (√3/2)·a²·h. Free, instant, with worked example.
  • Truncated Cone Volume Calculator
    Calculate the volume of a truncated cone (conical frustum) from its top radius, bottom radius, and height using V=(1/3)πh(R²+Rr+r²).
  • Cement Calculator
    Calculate how many bags of cement you need for a concrete slab or pour. Enter dimensions, mix ratio and bag volume to estimate cement bags.
  • Concrete Column Calculator
    Calculate concrete volume for round or rectangular columns. Enter diameter or width/depth, height, and quantity to get m³ and cubic yards instantly.