WaterBalanceTools provides free calculators for every common pool and spa chemistry calculation. All calculators are based on published industry formulas.
Pool Chemistry Calculators
| Calculator | Use It For | Link |
|---|
| Chemical Calculator | Comprehensive multi-parameter pool chemistry tool | /calculators/chemical-calculator |
| Pool Chlorine Calculator | Calculate liquid chlorine dose for pools | /calculators/pool-chlorine-calculator |
| Pool Shock Calculator | Calculate shock dose to reach target FC level | /calculators/pool-shock-calculator |
| Pool pH Calculator | Calculate acid or soda ash dose for pH adjustment | /calculators/pool-ph-calculator |
| Pool Alkalinity Calculator | Calculate sodium bicarbonate or acid dose for TA | /calculators/pool-alkalinity-calculator |
| Pool CYA Calculator | Calculate cyanuric acid dose to raise CYA | /calculators/pool-cyanuric-acid-calculator |
| Pool Volume Calculator | Calculate pool volume in gallons | /calculators/pool-volume-calculator |
| Turnover Rate Calculator | Calculate pump turnover rate and required run time | /calculators/pool-turnover-rate-calculator |
| Saltwater Pool Salt Calculator | Calculate salt dose for salt chlorinator pools | /calculators/saltwater-pool-salt-calculator |
Hot Tub & Spa Calculators
| Calculator | Use It For | Link |
|---|
| Hot Tub Chlorine Calculator | Calculate chlorine dose for hot tubs | /calculators/hot-tub-chlorine-calculator |
| Hot Tub pH Calculator | Calculate pH adjustment for hot tubs | /calculators/hot-tub-ph-calculator |
| Hot Tub Shock Calculator | Calculate shock dose for hot tubs and spas | /calculators/hot-tub-shock-calculator |
| Spa Volume Calculator | Calculate hot tub volume in gallons | /calculators/spa-volume-calculator |
| Volume Calculator | Universal volume calculator for any shape | /calculators/volume-calculator |
Notes
- All calculators are free and require no account or login.
- Bookmark the Chemical Calculator as your go-to tool for comprehensive water balancing.
Last reviewed: 2026-06-01
