Calculator

Pool Volume Calculator

Calculate swimming pool volume in gallons and litres. Includes chemical dosing guides, pump run time, and fill cost estimator.

🏊Pool Shape

📐Dimensions

Length (ft)

Width (ft)

Uniform depth (no shallow/deep end)

Shallow End Depth (ft)

Deep End Depth (ft)

Average depth: 5.25 ft

💧Cost to Fill

Water Cost per 1,000 gallons ($)

Check your water bill — average US rate is $3–$8 per 1,000 gal.

📊Pool Volume

17,673

Gallons

66,899

Litres

450

Surface Area (sq ft)

1.8

Pump Hours (10k GPH)

🧪Chemical Dosing Guide

Based on 17,673 gallons. Always test water before adding chemicals. Start conservatively and retest after 24 hours.

🟡 Chlorine

Shock dose28 oz (1 lb = 16 oz)

Weekly maintenance14 oz/week

Target: 1–3 ppm free chlorine

🔵 pH Adjusters

Muriatic acid (lower pH 0.2)0.44 qts

Soda ash (raise pH 0.2)0.88 lbs

Target pH: 7.2–7.6

⚪ Alkalinity

Sodium bicarbonate (raise alk 10 ppm)2.65 lbs

Target: 80–120 ppm

🟢 Cyanuric Acid (CYA)

Stabilizer (raise CYA 10 ppm)7 oz

Target: 30–50 ppm (outdoor pools)

⚠️ Safety: Never mix chemicals directly. Add one chemical at a time, wait 30 minutes, then retest. Always add chemicals to water, never water to chemicals.