Pool Calculator
Calculate how much water you need to fill your swimming pool and estimate costs
Pool Dimensions
Length of the pool in the longest direction
Width of the pool (perpendicular to length)
Depth at the shallow end of the pool
Depth at the deep end (use same as shallow if uniform depth)
Pool Volume Results
Formula: V = 0.0m × 0.0m × (0.0m + 0.0m) ÷ 2
Average depth: (0.00m + 0.00m) ÷ 2 = 0.00m
Result: 0.000 m³ = 0 liters = 0 US gallons
Water Cost Estimation (Optional)
Example Calculation
Omnicalculator Example
Pool: Rectangular, 50ft long × 12ft wide
Depths: 4ft shallow end, 6ft deep end
Average depth: (4 + 6) ÷ 2 = 5 feet
Volume: 50 × 12 × 5 = 3,000 ft³
Result & Cost
Volume: 3,000 ft³ × 7.48 = 22,441.57 US gallons
Water cost: 22,441.57 ÷ 1,000 × $1.50 = $33.66
Water weight: ~22,442 liters ≈ 22.4 tonnes
Total: 22,442 gallons costing $33.66
Pool Types
Above Ground
Easier installation, lower cost, portable.
Typical depth: 1-1.5m
In-Ground
Permanent installation, customizable design.
Typical depth: 1-3m
Olympic
Standard: 50m × 25m × 2-3m deep.
Volume: 2,500-3,750 m³
Lap Pool
Long and narrow for exercise swimming.
Typical: 25m × 3m
Common Pool Sizes
Pool Maintenance
Test water chemistry 2-3 times per week
Clean pool walls and floor weekly
Run filtration system 8-12 hours daily
Maintain chlorine: 1-3 ppm
Keep pH between 7.2-7.6
Skim surface debris daily
Understanding Pool Volume Calculations
How Pool Volume is Calculated
Pool volume calculation involves finding the surface area of the pool and multiplying by the average depth. For pools with varying depths, we calculate the average of the shallow and deep ends to account for the gradual slope.
Why Accurate Calculation Matters
- •Determines correct chemical dosages
- •Estimates water filling costs
- •Calculates pump and filter requirements
- •Determines heating system capacity
Calculation Formulas
Rectangular: V = L × W × (D₁ + D₂) ÷ 2
Oval: V = π × L × W ÷ 4 × (D₁ + D₂) ÷ 2
Conversions: 1 m³ = 264.17 US gal
- Water Density: ~1 kg per liter
- 1 US Gallon: 3.785 liters
- 1 Cubic Foot: 7.48 US gallons
- Olympic Pool: 2,500-3,750 m³
Note: The calculator assumes gradual depth change. For pools with abrupt depth changes, consider calculating each section separately.