Convert Ounces per hour to Grains per hour

Convert Ounces per hour (oz/h) to Grains per hour (gr/h) instantly and accurately.

Ounces per hour (oz/h)
Grains per hour (gr/h)

Conversion Formula

gr/h = oz/h × 437.5

About Ounces per hour

The ounce per hour (oz/h) equals 0.028349523125/3600 ≈ 7.875×10⁻⁶ kg/s, seen in refrigerant-charge leak-rate specifications and slow-drip irrigation design. US EPA Section 608 refrigerant regulations set leak-rate thresholds partly in oz/year; appliance industry test methods use oz/h equivalents for comparison. 1 oz/h ≈ 7.875×10⁻⁶ kg/s.

About Grains per hour

The grain per hour (gr/h) equals 6.479891×10⁻⁵/3600 ≈ 1.800×10⁻⁸ kg/s, used in HVAC psychrometric calculations for dehumidifier capacity and moisture-removal rates. ASHRAE load calculation spreadsheets report latent loads in grains of water per hour; a typical residential dehumidifier removes 5×10⁵-2×10⁶ gr/h. 1 gr/h ≈ 1.800×10⁻⁸ kg/s.

Quick Reference Table

Ounces per hour (oz/h)Grains per hour (gr/h)
1 oz/h437.5 gr/h
2 oz/h875 gr/h
5 oz/h2187.5 gr/h
10 oz/h4375 gr/h
25 oz/h10937.5 gr/h
50 oz/h21875 gr/h
100 oz/h43750 gr/h

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