Adjust recipes and convert common kitchen measurements quickly.
It helps home cooks scale ingredients for different serving sizes or switch between metric and imperial units.
Save time when prepping meals without manual math.
Kitchen Measurement Calculator
Conversion Results
How to Use This Tool
Enter the original measurement value you need to convert or scale. Select the unit of the original measurement from the dropdown menu, then choose your target unit for conversion. Adjust the scale factor if you are scaling a recipe up or down (1 = no change, 2 = double, 0.5 = half). Click Calculate to see your results, or Reset to clear all inputs. Use the Copy Results button to save your converted measurements to your clipboard.
- Input a positive number for your original measurement
- Select matching unit types (volume to volume or weight to weight) for accurate conversions
- Adjust the scale factor to fit your recipe batch size
Formula and Logic
The calculator uses standard kitchen conversion factors to switch between units, then applies a scale factor to adjust for batch size changes. For volume conversions, all units are first converted to milliliters (ml) as a base, then converted to the target volume unit. For weight conversions, all units are converted to grams (g) as a base, then converted to the target weight unit.
Scale factor calculations multiply the original measurement by your desired scaling value before or after unit conversion, depending on the result type. Original Scaled shows your original measurement adjusted for batch size in its original unit. Converted values show the original measurement (unscaled and scaled) in your target unit.
- Volume base: 1 tsp = 4.92892 ml, 1 tbsp = 14.7868 ml, 1 cup = 236.588 ml
- Weight base: 1 oz = 28.3495 g, 1 lb = 453.592 g
Practical Notes
Keep these real-world kitchen tips in mind when using this tool:
- Weight-to-volume conversions (e.g., grams to cups) are not supported here, as they vary by ingredient density. Use a kitchen scale for dry ingredients when possible for better accuracy.
- When scaling recipes, note that cooking times and temperatures may need adjustment for larger or smaller batches.
- Common volume conversions: 3 tsp = 1 tbsp, 16 tbsp = 1 cup, 2 cups = 1 pint, 4 cups = 1 quart.
- Common weight conversions: 16 oz = 1 lb, 454 g = 1 lb.
- For sticky ingredients like honey or peanut butter, spray your measuring spoon/cup with cooking spray first to make cleanup easier.
Why This Tool Is Useful
Home cooks often need to adjust recipes for different serving sizes or convert between metric and imperial units when using recipes from different regions. Manual calculations can lead to errors, especially when scaling batches up or down. This tool eliminates guesswork, saves prep time, and reduces measurement mistakes that can ruin a dish. It is especially helpful for meal prepping, baking (where precise measurements matter), and adapting family recipes for larger gatherings.
Frequently Asked Questions
Can I convert grams to cups with this tool?
No, this tool only supports conversions between units of the same type (volume to volume or weight to weight). Grams are a weight unit, and cups are a volume unit—the conversion between them depends on the density of the ingredient (e.g., 1 cup of flour weighs less than 1 cup of sugar). Use a kitchen scale for weight-based measurements of dry ingredients.
What scale factor should I use to halve a recipe?
Use a scale factor of 0.5 to halve all measurements. For example, if a recipe calls for 2 tbsp of oil, entering 0.5 as the scale factor will show you need 1 tbsp for a half batch. You can use any positive scale factor 0.1 or higher to adjust batch sizes as needed.
Why are my volume and weight conversions showing an error?
This error occurs when you select a volume unit (e.g., tsp, cup) for your original measurement and a weight unit (e.g., g, oz) for your target unit, or vice versa. The tool cannot convert between volume and weight units, as they measure different properties. Select units of the same type to resolve this error.
Additional Guidance
For best results when using converted measurements:
- Use liquid measuring cups for volume measurements of liquids, and dry measuring cups for dry ingredients to ensure accuracy.
- Level off dry ingredients with a straight edge when measuring by volume to avoid adding too much.
- When scaling recipes with yeast, note that yeast amounts may need to be adjusted slightly for very large batches to avoid over-proofing.
- Save your converted measurements to a notes app or print them out to avoid referencing your phone with messy hands while cooking.