🛢️ Tank Volume Calculator
Calculate tank volume for any tank shape
How to Use This Calculator
Select Tank Shape
Choose the tank shape: Cylindrical, Rectangular, or Spherical.
Select Unit
Choose your measurement unit: Feet, Inches, or Meters.
Enter Dimensions
Input tank dimensions based on shape: diameter and height for cylindrical, length/width/height for rectangular, or diameter for spherical.
Calculate and Review
Click "Calculate Volume" to see tank volume in gallons, liters, cubic feet, and cubic meters.
Formula
Cylindrical: V = π × r² × h
Rectangular: V = l × w × h
Spherical: V = (4/3) × π × r³
Example: Cylindrical tank, 5 ft diameter, 10 ft height
Step 1: Radius = 5 / 2 = 2.5 feet
Step 2: Volume = π × 2.5² × 10 = 196.35 cubic feet
Step 3: Gallons = 196.35 × 7.48052 = 1,469 gallons
Example: Rectangular tank, 10 ft × 5 ft × 8 ft
Step 1: Volume = 10 × 5 × 8 = 400 cubic feet
Step 2: Gallons = 400 × 7.48052 = 2,992 gallons
About Tank Volume Calculator
The Tank Volume Calculator is an essential tool for plumbers, engineers, contractors, and homeowners who need to calculate tank volumes. This calculator eliminates guesswork by providing precise volume calculations for cylindrical, rectangular, and spherical tanks, helping you determine capacity for water storage, fuel tanks, and other liquid containers.
When to Use This Calculator
- Water Storage: Calculate capacity for water tanks and storage systems
- Fuel Tanks: Determine volume for fuel storage tanks
- Chemical Storage: Calculate capacity for chemical storage containers
- Tank Sizing: Size tanks for specific volume requirements
- Capacity Planning: Plan tank capacity for projects and systems
Why Use Our Calculator?
- ✅ Accurate Calculations: Precise volume calculations using standard geometric formulas
- ✅ Multiple Shapes: Supports cylindrical, rectangular, and spherical tanks
- ✅ Multiple Units: Supports feet, inches, and meters with conversions
- ✅ Volume Conversions: Shows volume in gallons, liters, cubic feet, and cubic meters
- ✅ Time Savings: Instant calculations eliminate manual math
Frequently Asked Questions
How do I calculate cylindrical tank volume?
Volume = π × radius² × height, where radius = diameter / 2. For example, a 5-foot diameter, 10-foot high tank: π × 2.5² × 10 = 196.35 cubic feet = 1,469 gallons.
How do I calculate rectangular tank volume?
Volume = length × width × height. For example, a 10 ft × 5 ft × 8 ft tank: 10 × 5 × 8 = 400 cubic feet = 2,992 gallons.
How many gallons in a cubic foot?
1 cubic foot = 7.48052 gallons (US). The calculator automatically converts volumes to gallons for your convenience.
Can I use different units for measurements?
Yes! Select your unit (feet, inches, or meters) and enter dimensions in that unit. The calculator will automatically convert to gallons, liters, and other volume units.