All Pool & Hot Tub Tools
Calculators and dosage guides. Find your pool size or hot tub size for instant chemical amounts.
Pool calculators
- Pool Chlorine Calculator
- Hot Tub Chlorine Calculator
- Pool Shock Calculator
- Pool pH Calculator
- Hot Tub pH Calculator
- Pool Volume Calculator
- Spa Volume Calculator
- Pool Alkalinity Calculator
- Pool Cyanuric Acid (CYA) Calculator
- Saltwater Pool Salt Calculator
- Hot Tub Shock Calculator
- Pool Turnover Rate Calculator
- Chemical Calculator (full)
- Volume Calculator (legacy)
Pool size guides — chlorine
- Chlorine for 10,000 gal pool
- Chlorine for 12,000 gal pool
- Chlorine for 15,000 gal pool
- Chlorine for 18,000 gal pool
- Chlorine for 20,000 gal pool
- Chlorine for 25,000 gal pool
- Chlorine for 30,000 gal pool
- Chlorine for 5,000 gal pool
- Chlorine for 7,000 gal pool
- Chlorine for 8,000 gal pool
- Chlorine for 9,000 gal pool