Volume Calculator

  • Volume to Weight Calculator
    Convert volume to weight (mass) using density. Enter volume in mL, L, m³ or gallons and density to get mass in kg, grams and pounds.
  • Pounds to Gallons Calculator (Water)
    Convert pounds of water to US gallons instantly. Enter the weight in pounds and get the volume using the standard 8.34 lb per gallon factor.
  • Water Tank Volume Calculator
    Calculate water tank capacity in liters, US & UK gallons, and cubic meters. Works for cylindrical and rectangular tanks using simple dimensions.
  • Rectangular Prism Volume Calculator
    Calculate the volume of a rectangular prism (cuboid) instantly with length × width × height. Also shows surface area. Free and easy to use.
  • Cubic Feet of a Rectangle (Box) Calculator
    Calculate the cubic feet (volume) of a rectangular box from its length, width and height in feet. Get instant ft³, yd³ and in³ results.
  • Gallons to Liters Converter
    Convert gallons to liters instantly. Supports US gallons (3.785411784 L) and UK/Imperial gallons (4.54609 L) with exact conversion factors.
  • Volume of a Cylinder Calculator
    Calculate the volume of a cylinder instantly from its radius and height using V = πr²h. Also shows base area and total surface area.
  • Volume of a Sphere Calculator
    Calculate the volume of a sphere from its radius using V = (4/3)πr³. Instantly get volume, diameter, and surface area in any unit.
  • Oval Pool Water Volume Calculator
    Calculate the water volume of an oval or ellipse swimming pool in US gallons, cubic feet and liters from length, width and depth.
  • Prism Volume Calculator (Any Cross-Section)
    Calculate the volume of any prism from its cross-section area and length. Works for triangular, hexagonal, irregular and all uniform prisms.
  • Vertical Cylindrical Tank Volume Calculator
    Calculate total and filled volume of a vertical cylindrical tank from diameter, height and liquid level. Get m³, litres and fill percentage instantly.
  • Propane Tank Volume Calculator
    Calculate propane tank water capacity and usable gallons from diameter and length. Capsule-shape volume with adjustable fill percentage (default 80%).
  • Cone Frustum Volume Calculator (Diameters)
    Calculate the volume of a conical frustum (truncated cone) from its bottom diameter, top diameter, and height using V = (π·h/12)(D²+Dd+d²).
  • Pool Water Volume Calculator
    Calculate swimming pool water volume in gallons and liters from length, width, and average depth in feet or meters. Fast, accurate, and free.
  • Dilution Volume Calculator
    Calculate the stock volume needed for a dilution using C1V1 = C2V2. Enter stock and final concentrations plus final volume to get V1 and solvent.
  • Cubic Meters to Liters Calculator
    Convert cubic meters (m³) to liters (L) instantly. Enter any volume and get the exact result using L = m³ × 1000. Fast, free and accurate.
  • Cups to Grams Calculator
    Convert cups to grams for any ingredient using density. Pick flour, sugar, butter, water and more, or enter a custom g/mL value. Free and instant.
  • Milliliters to Grams Calculator
    Convert milliliters (mL) to grams (g) using density. Enter volume and density or pick a preset (water, milk, oil, flour, sugar, honey) for instant results.
  • Density Calculator (Mass and Volume)
    Calculate density from mass and volume with ρ = m/V. Supports grams, kilograms, cm³, mL, liters and m³. Get results in g/cm³ and kg/m³ instantly.
  • Cubic Inches to Gallons Calculator
    Convert cubic inches (in³) to US liquid gallons instantly. Enter a volume and get gallons using the exact factor: 1 gallon = 231 in³.
  • Cubic Feet to Gallons Calculator
    Convert cubic feet (ft³) to US liquid gallons instantly. Enter a volume in cubic feet and get the equivalent gallons using gal = ft³ × 7.48052.
  • Liters to Cubic Meters Calculator
    Convert liters to cubic meters instantly. Enter a volume in L and get the exact m³ value using the formula m³ = L ÷ 1000.
  • Volume of a Rectangular Prism Calculator
    Calculate the volume of a rectangular prism (box) instantly with V = l × w × h. Also computes total surface area. Free, fast, and accurate.
  • Volume of a Cone Calculator
    Calculate the volume of a cone instantly from its radius and height using V = (1/3)πr²h. Free, accurate cone volume calculator with worked example.

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