25 answers · 3 topics
How to convert…
Kitchen unit conversions — cups to grams, ounces to grams, tablespoons + teaspoons, Celsius to Fahrenheit. NIST-standard precision; ingredient-density notes where they matter.
Every answer here cites at least three sources, with a note on what each one adds.
Cooking
- How do I convert tablespoons to teaspoons?
1 tablespoon = 3 teaspoons (US standard). 1 fluid ounce = 2 tablespoons = 6 teaspoons. 1 cup = 16 tablespoons = 48 teaspoons. 1 pint = 32 tablespoons.
- How do I convert fahrenheit to celsius?
Exact: °C = (°F − 32) × 5/9. Quick approx: subtract 30 then halve (°C ≈ (°F − 30) ÷ 2).
- How do I convert celsius to fahrenheit?
Exact: °F = (°C × 9/5) + 32, or °F = °C × 1.8 + 32. Quick mental math: double °C then add 30 — accurate within ~2°F.
- How do I convert pounds to grams?
1 pound (lb) = 453.59 grams (g). Most home recipes round to 1 lb = 454 g or 450 g. For 1 ounce = 28.35 g (commonly rounded to 28 g).
- How many tablespoons in a cup?
1 US cup = 16 tablespoons (tbsp). 1 tbsp = 3 teaspoons (tsp). 1/4 cup = 4 tbsp, 1/2 cup = 8 tbsp, 3/4 cup = 12 tbsp.
- How do I convert kilograms to pounds?
1 kilogram (kg) = 2.20462 pounds (lb). For cooking, round to 1 kg = 2.2 lb (within 0.2%). To convert: multiply kg × 2.205.
- How do I convert milliliters to tablespoons?
1 tablespoon (US) = 14.79 mL ≈ 15 mL. 1 mL = 0.0676 tbsp. Quick math: divide mL by 15 to get tablespoons.
- How many fluid ounces in a cup?
1 US cup = 8 fluid ounces (fl oz). 1 fl oz = 1/8 cup. Common: 4 fl oz = 1/2 cup, 16 fl oz = 2 cups (1 pint), 32 fl oz = 1 quart, 128 fl oz = 1 gallon.
- How many tablespoons in a stick of butter?
1 US stick of butter = 8 tablespoons (1/2 cup) = 4 oz = 113 g. Most US butter wrappers are marked with tablespoon increments.
- How many cups in a liter?
1 liter (L) = 4.227 US cups ≈ 4.23 cups. Rounded: 1 L ≈ 4 1/4 cups. 500 mL ≈ 2.1 cups. 250 mL ≈ 1.06 cups (close to 1 cup).
- How do you convert microwave cooking time for different wattages?
Higher wattage = less time. Multiplier formula: new_time = recipe_time × (recipe_watts ÷ your_watts). Recipe says 1000W, you have 700W: cook 43% longer.
- How do you convert pressure cooker time to stovetop?
Pressure cooker to stovetop: multiply pressure-cooker time by 3-5×. For braises (chuck roast, brisket): 4× the time.
Baking
- How do I convert cups to grams?
Cups-to-grams conversion depends entirely on the ingredient — there's no universal rate. Water/milk: 1 cup = 240g. All-purpose flour: 1 cup = 120-125g.
- How do I convert ounces to grams?
1 ounce (oz) = 28.35 grams. Quick mental math: 1 oz ≈ 28g. Common: 1 lb = 16 oz = 453.6g. 1 fluid oz = ~29.6 mL = 30g (water).
- How do I convert tablespoons to grams?
Varies by ingredient. Water: 1 Tbsp = 15g. Butter: 14g. Sugar: 12g. Brown sugar (packed): 13g. Flour: 8g. Honey/syrup: 21g. Olive oil: 13.5g.
- How do I convert teaspoons to grams?
Varies by ingredient. Water: 1 tsp = 5g. Table salt: 6g. Diamond Crystal kosher salt: 3g. Sugar: 4g. Flour: 2.5g. Baking soda: 4.6g. Baking powder: 4g.
- How do I convert milliliters to cups?
US: 1 cup = 240 mL. Metric cup: 250 mL. Quick: 60 mL = 1/4 cup · 120 mL = 1/2 cup · 240 mL = 1 cup · 480 mL = 2 cups · 1 L = 4.2 cups.
- How do I convert cups to grams for flour?
1 cup all-purpose flour = 120 grams (King Arthur standard). Bread: 120g. Whole wheat: 113g. Cake: 114g. Almond: 96g. Coconut: 130g.
- How many cups is a stick of butter?
1 US butter stick = 1/2 cup = 8 Tbsp = 4 oz = 113g. 2 sticks = 1 cup = 1/2 lb = 227g. 4 sticks = 1 lb = 454g.
- How many cups in a given gram weight of flour?
All-purpose flour: 120 g ≈ 1 cup (spooned + leveled). 240 g ≈ 2 cups. 60 g ≈ 1/2 cup. For bread flour: 127 g ≈ 1 cup (slightly heavier).
- What is the Fahrenheit equivalent of UK gas mark?
Gas Mark 4 = 350°F (180°C). Each gas-mark step = 25°F. Gas Mark 1 = 275°F, GM 3 = 325°F, GM 5 = 375°F, GM 7 = 425°F, GM 9 = 475°F.
- How do I adjust baking recipes for altitude?
At 3,000+ ft elevation: reduce leavener by 15-25%, reduce sugar by 1-2 tbsp/cup, increase liquid by 1-4 tbsp, raise oven temp 15-25°F.
- How do you convert convection oven temperature to conventional?
Convection-to-conventional: ADD 25°F (14°C) to the recipe temperature. Conventional-to-convection: SUBTRACT 25°F (14°C).
Business and SaaS
- How do you convert website visitors to customers?
Median e-commerce conversion: 2-3%. Median B2B SaaS landing-to-trial: 3-5%. Trial-to-paid: 15-25%. Compound funnel: visitor→trial→paid = 0.5-1.5%.
- How do you convert leads to customers?
B2B lead-to-customer conversion: 5-15% median (best-in-class 20-30%).