How FlourPilot calculates results
FlourPilot is transparent about every conversion. This page explains the sources, density assumptions, rounding rules, and limitations behind the calculators. We never claim laboratory precision.
Conversion data provenance
The canonical ingredient dataset contains 0 externally sourced values, 0 FlourPilot measurements, 22 explicit working assumptions, and 0 derived values. An ingredient can carry a verified source name and URL when the owner supplies them; empty source fields mean FlourPilot makes no external attribution. Values are practical baking references, not laboratory measurements.
How to read our evidence
FlourPilot separates six kinds of information. Pure math, such as °C ↔ °F or g ↔ kg, follows a formula and does not need an editorial source. Some baking values are internal practical assumptions and should be read as approximations. When reliable external evidence supports a rule, we record it without treating one source as absolute truth. If reliable sources disagree, we keep the conflict visible and may retain an operational value. When evidence is insufficient, we say so and use the value cautiously. A broad product category, such as baking seeds, may be too vague for one universal value.
Ingredient density assumptions
All cup-to-gram conversions use the US customary cup of 240 ml. Because a cup measures volume and a gram measures weight, the same cup holds different weights for different ingredients. Denser ingredients pack more mass into the same volume.
Rounding
Results are rounded sensibly: liquids to one decimal, dry ingredients to whole grams where practical, and yeast to two decimals. The exact rounding rule is shown next to each result. Trailing zeros are trimmed for display only.
Measurement limitations
How you scoop, sift, and pack an ingredient changes its weight. Sifted flour weighs less per cup than scooped flour; packed brown sugar weighs more. FlourPilot uses spoon-and-level style assumptions for flours. For repeatable baking, a kitchen scale is always more reliable than volume.
Weight versus volume
Weight (grams) is absolute: 100 g of flour is always 100 g. Volume (cups) depends on how the ingredient sits in the cup. This is why professional bakers prefer weight, and why FlourPilot converts toward grams whenever possible.
FlourPilot does not claim laboratory precision. Results are practical, documented estimates for everyday baking.