Formula
Base quarts = quarts + extra pints ÷ 2. Exact US cups = base quarts × 4. US pints = base quarts × 2. US gallons = base quarts ÷ 4. US fluid ounces = base quarts × 32. Litres ≈ base quarts × 0.946352946. Planning cups = exact cups × (1 + allowance percent ÷ 100).
