The conversions people use every single day — weights, temperatures, lengths, and kitchen measurements — gathered into clear tables you can return to again and again.
Whether you are cooking, weighing luggage, or reading a recipe from another country, these are the weight conversions that come up most often.
| From | To | Equals |
|---|---|---|
| 1 ounce (oz) | grams (g) | 28.35 g |
| 1 pound (lb) | kilograms (kg) | 0.454 kg |
| 1 pound (lb) | ounces (oz) | 16 oz |
| 1 kilogram (kg) | pounds (lb) | 2.205 lb |
| 100 grams (g) | ounces (oz) | 3.53 oz |
| 1 stone (st) | pounds (lb) | 14 lb |
| 1 stone (st) | kilograms (kg) | 6.35 kg |
| 1 metric ton | pounds (lb) | 2,204.6 lb |
Celsius and Fahrenheit are the two scales used worldwide. Here is how to convert between them and a handy reference of common temperatures.
| Celsius (°C) | Fahrenheit (°F) | Description |
|---|---|---|
| -18 °C | 0 °F | Freezer setting |
| 0 °C | 32 °F | Water freezes |
| 4 °C | 40 °F | Refrigerator setting |
| 10 °C | 50 °F | Cool day |
| 21 °C | 70 °F | Room temperature |
| 30 °C | 86 °F | Warm summer day |
| 37 °C | 98.6 °F | Body temperature |
| 100 °C | 212 °F | Water boils |
| 160 °C | 325 °F | Oven: moderate |
| 180 °C | 350 °F | Oven: standard baking |
| 200 °C | 400 °F | Oven: hot |
| From | To | Equals |
|---|---|---|
| 1 inch (in) | centimeters (cm) | 2.54 cm |
| 1 foot (ft) | centimeters (cm) | 30.48 cm |
| 1 foot (ft) | inches (in) | 12 in |
| 1 yard (yd) | meters (m) | 0.914 m |
| 1 mile | kilometers (km) | 1.609 km |
| 1 kilometer (km) | miles | 0.621 mi |
| 1 meter (m) | feet (ft) | 3.281 ft |
| 1 centimeter (cm) | inches (in) | 0.394 in |
Recipes from different countries use different measuring systems. Here are the equivalents you need when a recipe asks for "cups" but your scale measures grams.
| Volume | Milliliters (ml) | US Cups |
|---|---|---|
| 1 teaspoon (tsp) | 5 ml | 1/6 cup |
| 1 tablespoon (tbsp) | 15 ml | 1/16 cup |
| 1 fluid ounce (fl oz) | 30 ml | 1/8 cup |
| 1/4 cup | 60 ml | 4 tbsp |
| 1/3 cup | 80 ml | 5 tbsp + 1 tsp |
| 1/2 cup | 120 ml | 8 tbsp |
| 1 cup | 240 ml | 16 tbsp |
| 1 pint | 473 ml | 2 cups |
| 1 quart | 946 ml | 4 cups |
| 1 gallon | 3,785 ml | 16 cups |
| Ingredient (1 US cup) | Grams (g) | Ounces (oz) |
|---|---|---|
| All-purpose flour | 125 g | 4.4 oz |
| Granulated sugar | 200 g | 7.1 oz |
| Brown sugar (packed) | 220 g | 7.8 oz |
| Butter | 227 g | 8 oz |
| Milk | 240 g | 8.5 oz |
| Rolled oats | 90 g | 3.2 oz |
| Honey | 340 g | 12 oz |
| Measurement | Equivalent |
|---|---|
| 1 square meter (m²) | 10.76 square feet |
| 1 acre | 4,047 square meters |
| 1 hectare | 2.471 acres |
| 1 liter (L) | 33.81 fluid ounces |
| 1 gallon (US) | 3.785 liters |
| 1 mile per hour (mph) | 1.609 km/h |
| 1 km per hour (km/h) | 0.621 mph |
A useful approximation: double the Celsius value and add 30. For example, 20 °C becomes about 70 °F (actual: 68 °F). This is close enough for weather and general purposes.
Most of the world adopted the metric system in the 19th century. The United States continues to use the imperial system for everyday measurements, while the UK uses a mix — miles for roads but grams for cooking.
No. The US cup is 240 ml, while the metric cup used in Australia, New Zealand, and some other countries is 250 ml. Always check the recipe origin when measuring.