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Kitchen Conversions

6 articles · Weight, volume & oven temperature guides

The secret to flawless recipe scaling is leaving imprecise cup measurements behind. This comprehensive database utilizes high-precision NIST culinary measurement metrics to factor in bulk density variance, allowing you to convert volumetric measurements into exact gram weights seamlessly.

⚖️ Open Conversion Tool → 🌡️ Open Temperature Converter →

⚖️ Kitchen Conversion Reference

The measurement standards and ingredient densities that make recipe scaling reliable — pulled live from the toolFacts data layer (NIST-referenced).

Kitchen Conversions at a Glance

GuidelineValue
Water reference weightscup grams: 236.588, quart grams: 946.353, liter grams: 1000 grams per volume unit
Table salt density18 grams per tablespoon
Morton kosher salt density14 grams per tablespoon
Diamond Crystal kosher salt density9 grams per tablespoon
US butter stick weight113 grams
European butter block weight250 grams
Butter weight for ⅓ cup76 grams
Butter weight for ⅔ cup151 grams
Large egg weightwithShell: 57, noShell: 50 grams per egg
Kitchen Volume Conversion Standardsteaspoon to tablespoon: 3, tablespoon to cup: 16, cup to teaspoon: 48, cup to fluid ounce: 8, cup to ml: 237, cup to ml rounded: 240, fractional: one third cup: tablespoons: 5, teaspoons: 1, two third cup: tablespoons: 10, teaspoons: 2 standard US kitchen measurements
Common flour weights per cup (spoon-and-level)all purpose g: 120, bread g: 120, cake g: 96, whole wheat g: 113, pastry g: 100, self rising g: 110, rye g: 110, grams per US cup (237ml)
Water boiling point at sea levelf: 212, c: 100 degrees F / C
Sticky sweetener (honey, syrup) density per cuphoney g: 340, honey tbsp: 21.3, maple syrup g: 320, maple syrup tbsp: 20, molasses g: 340, molasses tbsp: 21.3, corn syrup g: 328, corn syrup tbsp: 20.5, agave nectar g: 306, agave nectar tbsp: 19.1, water ref g: 240, water ref tbsp: 15, grams per US cup (237ml)

All values sourced from NIST-referenced toolFacts measurement data.

🥄 Weight & Volume

Tablespoon-to-cup math, measuring butter without a scale, and why sticky ingredients need special handling.

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Tablespoon to Cup Conversion: The Kitchen Math That Goes Wrong When You Double a Recipe Updated June 1, 2026
3 teaspoons = 1 tablespoon. 16 tablespoons = 1 cup. ½ cup = 8 tablespoons. These are the numbers — but the mistake happens when you're doubling a recipe and suddenly need to convert 24 tablespoons into something measurable. Here's the full reference and the shortcut that prevents the error.
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How to Measure Butter Without a Scale: The Wrapper Method, Water Displacement, and When Each Works Updated June 2, 2026
US butter wrappers have tablespoon markings — 1 stick = ½ cup = 8 tablespoons = 113g. The markings are accurate to the tablespoon but not below it. For amounts under 1 tablespoon, or for European butter with no markings, use the water displacement method or a scale.
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Your Honey Cake Collapsed: Why Measuring Sticky Ingredients by Volume Destroys Your Baked Goods Updated June 17, 2026
Honey weighs 340g per cup — water weighs 240g. That 42% difference means a honey cake measured by volume gets 42% more sweetener than the recipe intended. The cake collapses because the extra sugar disrupts the structure. Here's the fix.

📏 Scaling & Pans

Scaling recipes up or down without ruining ratios, plus pan size conversions and oven temperature math.

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How to Scale a Recipe Up or Down Without Ruining the Ratios Updated August 1, 2026
Flour doubles. Yeast doesn't. The 5 things that break when you scale a recipe — salt, spices, yeast, fermentation time, oven time — with the exact rules and the free calculator that handles them.
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Cake Pan Size Conversion: Complete Reference Chart for Round, Square, Rectangular & Loaf Pans Updated June 23, 2026
Complete cake pan size conversion chart: round (6"–10"), square (8×8, 9×9), rectangular (9×13), loaf (9×5), and bundt (10"). Surface area, volume in cups, batter fill ratios, and bake time adjustments for every common pan swap.
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8x8 vs 9x13: Convert Any Baking Recipe Updated March 19, 2026
Converting between pan sizes isn't guesswork — it's surface area math. Learn exactly how to adjust batter quantity and baking time when switching between 8x8, 9x13, round, and loaf pans.
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Oven Temperature Conversion: Fahrenheit, Celsius, Fan, and Gas Mark — The Complete Reference Updated May 31, 2026
350°F = 175°C = Gas Mark 4 = 160°C fan. But these conversions only work if your oven is accurate — most home ovens run 25–50°F off from what the dial says. Here's the full conversion table, the fan oven adjustment rules, and how to know if your oven is lying to you.

Related Hubs

🎂 Baking Science → 🔄 Ingredient Substitutions → 🍞 Sourdough Baking → ☕ Coffee Science →

🛟 Baking Rescue

A recipe fails for two reasons: you measured it wrong, or you swapped something you shouldn't have. When the numbers check out but the bake still falls flat, the problem is usually the ingredient — not your math. One number worth memorizing: 120 g per cup spooned-and-leveled — scooping can add 20–30 g more. Head to the Ingredient Substitutions hub for the exact egg, buttermilk, and leavening swaps that keep a rescue from becoming a second failure.

Best Egg Substitutes for Baking: What to Use for Cookies, Cakes, and Bread The best egg substitute depends on your recipe: flax egg for cookies, aquafaba for egg whites, and applesauce for moist quick breads. Use this guide to choose the right substitute by recipe type, amount, and texture. Buttermilk Substitute: 5 Options That Actually Work in Recipes The fastest buttermilk substitute: 1 tablespoon white vinegar or lemon juice + enough milk to make 1 cup. Wait 5 minutes. Works in pancakes, cakes, and fried chicken brine. Here are all 5 options with exact ratios. Baking Soda vs Baking Powder: Why They're Not Interchangeable (And What Happens When You Mix Them Up) Baking soda needs an acid in the recipe to work. Baking powder has that acid built in. Use the wrong one and you get flat, dense, or metallic-tasting results — here's exactly what each does and the conversion when you're out of one.
🔄 Open Ingredient Substitutions Hub →

Free Interactive Tools

⚖️ Cups to Grams Converter

Convert between cups, tablespoons, and grams for 55+ ingredients. Based on USDA and King Arthur tested measurements. No sign-up needed.

🌡️ Oven Temperature Converter

Convert between Fahrenheit, Celsius, fan/convection, and Gas Mark instantly. Full reference table included.

Convert Weight → Convert Temperature →