- How do I scale a recipe?
- Divide the target servings by the original servings to get the ratio, then multiply every ingredient quantity by that ratio. A recipe for 4 servings, cooking for 8, has a ratio of 2 — so 1 cup of flour becomes 2 cups, 1/2 tsp of salt becomes 1 tsp. This calculator does the multiplication for the whole ingredient list at once. The math is linear; the only ingredients that don't scale linearly are leaveners (baking soda, baking powder, yeast) and salt at very large or very small ratios.
- Why don't 'salt to taste' or 'a pinch of pepper' get scaled?
- Because scaling them is almost always wrong. Salt to taste means 'season until it tastes right' — that doesn't double when you double the recipe; you still season to your palate. A pinch of pepper is a pinch whether you're cooking for two or twenty. The calculator detects qualitative markers — 'to taste', 'pinch', 'dash', 'as needed', 'splash' — and passes those lines through unchanged. The output marks them clearly so you know they're intentional, not skipped.
- Does the calculator convert between cups and grams?
- No. The scaler keeps the unit you typed: 2 cups becomes 4 cups, not 480 mL or 250 grams. If you need to convert between volume and weight, use the Cooking Measurement Converter (for volume ↔ volume) or Cups to Grams Converter (for volume ↔ weight, by ingredient). Mixing scaling and conversion in one tool would muddle the math; keeping them separate means each one does one thing and does it right.
- What's the upper limit for scaling a recipe?
- Most recipes survive doubling or tripling without changes. Past 4× starts producing surprises: leaveners stop working linearly (baking soda overflows, yeast can't keep up with the bigger mass), pans run out of room, water evaporates more slowly from a bigger pot, and salt becomes overpowering. For very large batches, professional cooks scale in stages and adjust. The calculator gives you the math; the kitchen still has the final word.
- Can I scale baking recipes the same way?
- Mostly yes — flour, sugar, butter, eggs all scale linearly. The exceptions: leaveners (baking soda, baking powder, yeast) need slightly less at large scales because they're more efficient with a bigger mass. Salt and spices also need a slight downward adjustment in big batches. For a 2× or 3× bake, the linear math works. For 5× or beyond, expect to dial leaveners back by 10-20% and taste the dough for salt before baking.
- How does the calculator handle fractions like 1 1/2 cups?
- It parses them as mixed numbers — 1 1/2 means 1.5, 2 1/4 means 2.25, and so on. The result is rendered back as a kitchen-friendly fraction when the math lands close to a clean eighth (1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8) and as a 2-decimal number when it doesn't. So scaling 1 cup at 2/3× gives '2/3 cup', but scaling 2 cups at 3/7× gives '0.86 cups' because there's no clean fraction near that amount.
- What about ranges — '1-2 cups of broth'?
- Ranges are scaled at both endpoints. A recipe that says '1-2 cups of broth' at 1.5× becomes '1 1/2 to 3 cups of broth'. The calculator recognizes hyphens, em-dashes, and the word 'to' between two quantities. The range is preserved because that's information — the original cook is telling you to start at the low end and add more by feel.
- Why do some ingredient lines come back unchanged?
- Three reasons: (1) the line has a qualitative marker — 'to taste', 'pinch', 'dash', 'as needed' — and is preserved on purpose; (2) the line doesn't start with a number the parser recognizes; (3) the line is something like 'fresh basil' or 'lemon zest' that doesn't have a quantity at all. Unchanged lines are tagged in the output, so you can spot them at a glance.
- Can I print or save the scaled recipe?
- Use the Copy List button at the top of the result to copy the entire scaled ingredient list to your clipboard. Paste it into Notes, a shopping app, a printable doc, or anywhere else you want a copy. The list is plain text — one ingredient per line — so it works everywhere.
