Pool Shock Calculator: Global Precision for Sparkling Water
From residential pools to commercial spas, our pool shock calculator delivers exact chlorine shock dosage in pounds and grams β trusted worldwide.
"Clean water is the foundation of health."
How the Pool Shock Calculator Works
Using 2025 global standards, the pool shock calculator computes:
- Chlorine demand (ppm increase)
- Shock type efficiency
- Pool condition multiplier
- pH and CYA adjustments
- Temperature and sunlight loss
- Bather load impact
Shock (lbs) = (Volume Γ PPM Rise Γ 0.00013) Γ· % Available Chlorine
Shock Dosage Guide (2025)
| Condition | Target FC | Cal-Hypo 68% | Dichlor 56% |
|---|---|---|---|
| Weekly Shock | 10 ppm | 2.3 oz / 1,000 gal | 2.9 oz / 1,000 gal |
| Green Algae | 30 ppm | 6.9 oz / 1,000 gal | 8.7 oz / 1,000 gal |
| Black Algae | 40 ppm | 9.2 oz / 1,000 gal | 11.6 oz / 1,000 gal |
Why Use This Pool Shock Calculator?
- All Shock Types β Cal-Hypo, Dichlor, Liquid
- Global Units β lbs/oz & grams
- Condition-Based β Algae, cloudy, clear
- pH & CYA Safe β Prevents over-chlorination
- Commercial Ready β Up to 200,000 gal
Pool Shock Calculator Pro Tips
- Shock at dusk β Minimizes UV loss
- Pre-dissolve granular β Avoid clouding
- Run pump 24 hrs β Full circulation
- Test after 8 hrs β Verify FC level
- Brush walls β Break algae biofilm
Calculate Your Pool Shock Now
Keep your pool safe and sparkling. Use the pool shock calculator trusted by pool professionals worldwide.
Start Shocking