Volume Calculator

  • Swimming Pool Gallons Calculator for Any Shape (Surface Area × Depth)
    Estimate the water volume in gallons of a kidney-shaped or irregular swimming pool from its surface area and average depth. Free and instant.
  • Tank Volume Calculator
    Calculate the volume and capacity of horizontal or vertical cylindrical tanks in cubic meters, liters, and US gallons from diameter and length.
  • Volume Conversion Calculator
    Convert volume between liters, milliliters, US gallons, quarts, pints, cups, and fluid ounces instantly. Uses US customary units for liquid measures.
  • Conical Frustum Volume Calculator
    Calculate the volume of a conical frustum with this Conical Frustum Volume Calculator. Input top radius, bottom radius, and height for accurate results. Ideal for geometry and engineering applications.
  • Hemisphere Volume Calculator
    Calculate hemisphere volume easily with this free online tool. Input the radius to instantly determine the volume of a hemisphere. Accurate results for spherical segments.
  • Acre-Feet to Gallons Calculator
    Convert acre-feet to US gallons instantly. Enter acre-feet and get the exact gallon volume using 1 acre-foot = 325,851 gallons.
  • Cubic Feet Calculator (Volume & Cost for Multiple 3D Shapes)
    Calculate volume in cubic feet for boxes, rooms, tanks, cylinders, spheres and more. Convert to cubic inches, yards, meters, gallons, liters and total cost.
  • Pool Volume Calculator
    Calculate the volume of a rectangular swimming pool in US gallons from length, width, and depth. Includes liters, surface area, and average depth.
  • Concrete Slab Calculator
    Calculate concrete needed for a slab in cubic yards and cubic feet, plus how many 40, 50, 60 or 80 lb bags to buy. Free estimator.
  • Liters to Gallons Converter
    Convert liters to gallons instantly. Get both US liquid gallons and UK imperial gallons from any volume in liters, with the exact formula shown.
  • Paint Volume & Coverage Calculator
    Calculate how many gallons of paint you need based on wall area, number of coats, and coverage per gallon. Free, fast paint estimator.
  • Engine Displacement Volume Calculator
    Calculate total engine displacement from bore, stroke and cylinder count. Get results in cc, liters and cubic inches instantly with this free tool.
  • Weight to Volume Calculator
    Convert weight (mass) to volume using density. Enter grams, kg, lb or oz plus density to get volume in mL, liters and cm³ instantly.
  • Round Pool Volume Calculator
    Calculate the water volume of a round (circular) swimming pool in US gallons and cubic feet from its diameter and average depth.
  • Raised Garden Bed Soil Calculator
    Calculate how much soil you need for a raised garden bed in cubic feet, cubic yards, and number of bags. Enter length, width, and depth.
  • Fill Dirt Calculator
    Calculate how much fill dirt you need in cubic yards and tons. Enter length, width and depth to estimate volume, weight and cost for your project.
  • Rectangular Pool Gallons Calculator
    Calculate how many gallons of water your rectangular swimming pool holds using length, width, and average depth. Free, instant pool volume calculator.
  • Water Tank Capacity Calculator
    Calculate water tank capacity in liters for rectangular or cylindrical tanks. Enter dimensions in meters to get volume, liters and US gallons instantly.
  • Shipping Box Volumetric Weight Calculator
    Calculate the volumetric (dimensional) weight and volume of a shipping box from its length, width, height and the carrier dimensional divisor (5000, 6000 or 4000).
  • Box Volume Calculator
    Calculate the volume of a rectangular box from length, width and height. Get results in cubic inches, cubic feet, liters and US gallons instantly.
  • Bucket Volume Calculator
    Calculate the volume of a tapered bucket from its top diameter, bottom diameter and height. Get results in liters, US gallons and UK gallons instantly.
  • Hot Tub Volume Calculator
    Calculate how many gallons of water your hot tub holds. Enter the shape and dimensions to estimate volume in gallons, liters and cubic feet.
  • Horizontal Cylindrical Tank Volume Calculator
    Calculate the liquid volume in a horizontal cylindrical tank for any fill height. Get partial-fill volume, fill %, liters and US gallons instantly.
  • Oval (Stadium) Tank Volume Calculator
    Calculate the volume of an oval (stadium / capsule cross-section) tank from its width, height and length. Get liters, cm³ and US gallons instantly.

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