Instant Volume, Capacity
& CBM Calculations
Accurate, instant calculation tools for 3D geometric shapes, industrial storage tanks, pipes, cylinders, logistics shipping CBM, and volume unit conversions.
Popular Calculators
Volume Calculator
Calculate 3D shape volume for cylinders, cubes, prisms, spheres, and cones with instant unit conversions.
CBM Calculator
Calculate cubic meters (m³) and shipment freight volume from cm, mm, inches, or meters.
Pipe Volume Calculator
Calculate internal pipe volume, water holding capacity in litres/gallons, and fluid weight.
Cylinder Volume Calculator
Calculate volume from radius or diameter and height with step-by-step mathematical formulas.
Cubic Meter & Cubic Metre
Calculate cubic meters (m³) and cubic metres with instant conversions to litres, gallons, and CFT.
Tank Volume Calculator
Calculate volume and liquid capacity for horizontal and vertical storage tanks with dip level support.
Construction, Pool & Freight Calculators
High-precision estimators for contractors, pool maintenance, and global freight forwarding.
Concrete Calculator
Estimate cubic yards, pre-mix bags (80 lb & 60 lb), ready-mix truckloads, and cost buffer for slabs and footings.
Swimming Pool Volume
Calculate pool capacity in US Gallons, Litres, and cubic meters with chlorine shock chemical dosing for all shapes.
Container CBM Calculator
Calculate container stuffing, usable volume gauges (20ft, 40ft, 40ft HC), and standard pallet fitment.
Conical Frustum Calculator
Calculate truncated cone volume, slant height, and surface area from top/bottom radii with geometric proofs.
Guides & Formulas
Explore verified mathematical formulas, step-by-step tutorials, and unit conversion handbooks.
Volume Formulas
Complete mathematical formulas reference for all geometric 3D shapes with diagrams.
How to Calculate CBM
Step-by-step guide to calculating cubic meters for air, sea, and courier shipments.
How to Calculate Volume
Practical guide explaining volume calculation methods for regular and irregular solids.
Volume Unit Converter
Instant conversion between litres, gallons, cubic meters, cubic feet, and fluid ounces.
Designed for Speed and Everyday Utility
Clear, practical volume calculators built with zero clutter and instant results.
Instant Calculations
Client-side reactive math provides real-time results as you type directly in your browser.
No Sign Up Required
Completely free to use without accounts, email subscriptions, credit cards, or tracking paywalls.
Multiple Units Supported
Full dual support for metric (m³, cm, litres) and imperial (ft³, inches, gallons, yards) units.
Step-by-Step Derivations
Every calculator provides formulas, worked numeric examples, and practical guidance.