Quickly calculate the volume of a cube, sphere, cylinder, cone, and more. Our free calculator is a great tool for students, builders, and DIY projects.
You're packing a box for shipping and want to know how much stuff can fit inside. You're filling a fish tank and need to know how much water it will hold. You're building a garden planter and need to figure out how much soil to buy.
The answer to all these "how much fits inside?" questions is volume. Volume is the measurement of the three-dimensional space an object occupies. While surface area tells you about the outside wrapper, volume tells you about the capacity within. It's a critical measurement for countless real-world applications.
Understanding volume is essential for:
DIY & Construction: Calculating the amount of soil for a planter, gravel for a path, or water for a pool.
Shipping & Logistics: Determining the capacity of boxes and shipping containers.
Cooking & Baking: Converting between volume measurements like cups and liters (though our tool focuses on geometric shapes).
Math & Science Students: A vital tool for checking homework and understanding geometry.
Every 3D shape has a different formula to calculate its volume. Our tool knows them all.
Open the Volume Calculator: Go to the FreeXTool Volume Calculator.
Select Your Shape: Choose the 3D object you are measuring (e.g., Cube, Sphere, Cylinder).
Enter the Dimensions: Input the required measurements, like length, width, height, or radius.
Get Your Answer: The tool will instantly calculate and display the total volume of your shape.
The golden rule of calculating volume is to make sure all of your initial measurements are in the same unit. If you measure the length in feet, the width must also be in feet, and the height must be in feet. If you mix units (like measuring length in feet and width in inches), your result will be incorrect. Convert all your measurements to the same unit before using the calculator.
Tackle your geometry and construction problems with these tools: