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Relative Humidity Calculator helps contractors and tradespeople accurately size, spec, and estimate materials and systems.

Formel

RH = (Partial Pressure of Water Vapor / Saturation Pressure) × 100

Trinn-for-trinn guide

  1. 1Measure wet and dry bulb temperatures, look up from psychrometric chart
  2. 2Apply the formula using your project measurements
  3. 3Add required safety factors or waste allowances per code

Løste eksempler

Inndata
70°F dry bulb, 60°F wet bulb
Resultat
RH ≈ 57% from psychrometric chart

Vanlige feil å unngå

  • Not applying code-required safety factors or derating
  • Forgetting to account for waste and cut losses in material estimates

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Innstillinger

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