Tools in This Collection
Recipe Scaler
Scale any recipe up or down by serving count
Cooking Measurement Converter
Convert between cups, tablespoons, ml, and grams
Altitude Cooking Adjustment
Adjust temperatures and times for high altitude
Altitude Baking Adjustment
Modify leavening, sugar, and liquid for high-altitude baking
Air Fryer Converter
Convert oven recipes to air fryer times and temperatures
Meat Thaw Time Calculator
Calculate safe thawing times by method and weight
Candle Wax Calculator
Calculate wax, fragrance oil, and dye for candle making
The Complete Recipe Conversion Workflow
Most kitchen measurement problems fall into one of three categories: you need to scale a recipe for a different serving count, you need to convert between measurement systems, or you need to adjust for your cooking conditions. Start with the Recipe Scaler — it multiplies or divides every ingredient proportionally. Enter your original servings, new servings, and every ingredient scales automatically. This is essential for party cooking or halving a large batch for a smaller household.
Measurement Conversions
The Cooking Measurement Converter handles the tricky conversions that trip up most cooks. The critical thing to know: volume and weight are not interchangeable. 1 cup of all-purpose flour weighs about 120g when properly measured (spoon-and-level method), but 1 cup of granulated sugar weighs about 200g. The difference is why baking by weight produces more consistent results than by volume. The Cooking Converter handles ingredient-specific weight-to-volume conversions for dozens of common ingredients, so European recipes (weight-based) and American recipes (volume-based) work equally well.
Altitude Cooking Adjustments
At 5,000 feet elevation, cooking and baking behave differently. Water boils at 202°F instead of 212°F, leavening gases expand faster, and moisture evaporates more quickly. The Altitude Cooking Adjustment Calculator adjusts temperature and time for general cooking. For baking specifically, the Altitude Baking Adjustment Calculator provides more detailed changes: reduce baking powder by 15-25% at 3,500 ft (it gets too active at lower air pressure), increase liquid by 2-4 tablespoons per cup, slightly increase flour, and raise oven temperature 15-25°F. Cakes that rise beautifully at sea level can collapse at altitude without these adjustments.
Air Fryer and Thawing
Converting conventional oven recipes to air fryer is simple: reduce temperature by 25°F (15°C) and reduce time by 20-25%. A chicken breast that bakes at 400°F for 25 minutes in an oven takes about 360°F for 18-20 minutes in an air fryer — and the circulating hot air produces crispier results. The Air Fryer Converter calculates this automatically. Before cooking, safe thawing matters: refrigerator thawing at 40°F takes 1 day per 5 lbs. Cold water thawing is faster (30 min per lb) but requires the food to stay in cold water changed every 30 minutes. The Meat Thaw Time Calculator gives safe estimated times by method and weight.
Frequently Asked Questions
How do I scale a recipe for more servings?
Divide the desired servings by the original servings to get a multiplier. Then multiply every ingredient by that number. For a recipe that serves 4, scaling to 12 people uses a 3x multiplier. Exception: leavening agents (baking powder, baking soda) should only be scaled 75-80% when tripling or more — too much leavening in a large batch causes over-rising and collapse.
What are the altitude cooking rules of thumb?
For every 1,000 feet above sea level: reduce baking powder by 1/8 teaspoon per teaspoon, add 1-2 tablespoons extra liquid, and increase oven temperature 5-10°F. At 5,000+ feet, cakes may need 10-15% more flour. These adjustments compensate for lower boiling points and faster leavening gas expansion at altitude.
How do I convert a conventional oven recipe for an air fryer?
Reduce the temperature by 25°F (15°C) and reduce the cooking time by 20-25%. Air fryers circulate hot air more efficiently than conventional ovens, so food cooks faster and develops a crispier exterior. Always check internal temperature rather than relying solely on time — air fryer performance varies by model and food thickness.