Canonical Dataset

↔ Conversion Factors

All unit conversion factors used in pool chemistry calculations. Single authoritative source. Never duplicate these values elsewhere.

Dataset ID
conversion-factors
Version
2026.07
Last Reviewed
2026-07-01
Maintainer
WaterBalanceTools
Records
22

Source Priority

Values in this dataset are sourced in the following order (highest authority first):

  1. 1. scientific-literature
  2. 2. industry-standards

Records (22)

idfromUnittoUnitfactorformulanotes
gal-to-litersus-gallonsliters3.785411784liters = gallons × 3.785411784
liters-to-gallitersus-gallons0.264172052gallons = liters × 0.264172052
gal-to-ft3us-gallonscubic-feet0.133680556ft³ = gallons × 0.133680556
ft3-to-galcubic-feetus-gallons7.48051948gallons = ft³ × 7.48051948
fl-oz-to-galus-fluid-ozus-gallons0.0078125gallons = fl_oz / 128
gal-to-fl-ozus-gallonsus-fluid-oz128fl_oz = gallons × 128
liters-to-mllitersmilliliters1000mL = L × 1000
lb-to-ozpoundsoz-weight16oz = lb × 16
oz-to-lboz-weightpounds0.0625lb = oz / 16
lb-to-gramspoundsgrams453.59237g = lb × 453.59237
grams-to-ozgramsoz-weight0.035273962oz = g × 0.035273962
oz-to-gramsoz-weightgrams28.34952g = oz × 28.34952
kg-to-lbkilogramspounds2.20462262lb = kg × 2.20462262
ppm-to-mglppmmg-per-l1mg/L = ppm (in dilute aqueous solution)
ppm-to-ppbppmppb1000ppb = ppm × 1000
percent-to-ppmpercentppm10000ppm = percent × 10000
f-to-cfahrenheitcelsius°C = (°F − 32) × 5/9
c-to-fcelsiusfahrenheit°F = °C × 9/5 + 32
hours-to-minuteshoursminutes60min = hr × 60
days-to-hoursdayshours24hr = days × 24
grams-per-ppm-per-galgramsppm-gallons37.854grams_needed = ppm_change × volume_gallons × 3.785411784 / 100037.854 g of pure substance per 1 ppm change per 10,000 gallons of water
water-density-lbs-per-galgallonspounds8.34lbs = gallons × 8.34 (at 77°F/25°C)Approximate. Density varies slightly with temperature.

About This Dataset

This dataset is part of the WaterBalanceTools Canonical Data Layer. All factual values used across the website originate from canonical datasets like this one. No calculator, article, or tool embeds these values directly — they are always resolved through the data layer.

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