Redmoon Converters 粘贴配方，按目标份数或自定义倍数一次性缩放所有食材用量。支持智能分数处理、公制/英制切换，并可复制为整洁文本。
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系统会扫描每一行中的数字（包括“1 1/2”这样的分数以及 Unicode 分数符号 ½），并将首个数值乘以目标份数/原始份数的比例。系统会识别常见单位（cup、tbsp、tsp、g、kg、ml、oz、lb），因此非数量类数字（如烤箱温度 °F、分钟数）不会被改动。
结果在低于 10 cups/tbsp/tsp 时会四舍五入为常见分数（¼、⅓、½、⅔、¾），高于此值则取整为整数克数。公制切换会转换 cup（×240 ml）、tbsp（×15 ml）、tsp（×5 ml）、oz（×28 g）、lb（×454 g）、°F → °C。
The multiplier is target servings divided by original servings, defaulting to 6 ÷ 4 = 1.50, and the multiplier field or the quarter, half, 2× and 3× buttons override it whenever a positive number is present. Each pasted line is then scanned for its first number, understanding mixed forms like 1 1/2, plain fractions like 3/4 and unicode glyphs such as half and two-thirds. Results are rebuilt as the nearest friendly fraction below 10, whole numbers above 10, and whole grams for weight units.
Servings and the multiplier are the obvious levers, but the Convert imperial to metric button changes the output most. Turned on, it rewrites cups as ×240 ml, tablespoons ×15, teaspoons ×5, ounces ×28.35, pounds ×453.6, inches ×2.54 and Fahrenheit to Celsius. Turned off, any line whose unit looks like a time, temperature or length is deliberately skipped, so a 350°F oven and a 25 minute bake stay exactly as written while the ingredients scale.
Only the first number on each line is touched, so a line reading 2 eggs plus 1 for the wash scales the 2 and leaves the 1 alone. Unit detection is substring based, which means a word beginning with min, such as minced or mint, is mistaken for minutes and left unscaled. Beyond parsing, scaling is pure arithmetic: pan size, bake time, leavening and salt rarely scale linearly, and fraction rounding can drift a few percent on small amounts.
Press the half button, which writes 0.5 into the multiplier field and overrides the servings calculation entirely. The quarter, 2× and 3× buttons work the same way. Clear the multiplier field to go back to the servings ratio.
That is deliberate. Any number followed by a temperature, time or length unit — °F, °C, minutes, hours, inches, cm — is left untouched, because doubling a recipe should not double the bake temperature or the tin diameter.
No. It converts volume to volume, so a cup becomes 240 ml and a tablespoon 15 ml. Only ounces and pounds become grams. For a true volume-to-weight answer you need an ingredient density, which this tool does not hold.
Below 10 it picks the closest of one-eighth, quarter, third, three-eighths, half, five-eighths, two-thirds, three-quarters and seven-eighths, keeping any whole number in front. From 10 upwards it rounds to a whole number, and weights round to whole grams.
Yes. The parser reads mixed numbers such as 1 1/2, bare fractions such as 3/4, decimals, and unicode fraction characters. It converts them to a decimal, applies the multiplier, then reformats the answer back into a cooking-friendly fraction.
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