Useful conversions and equivalencies
Temperature conversion formulas
To convert from Centigrade to Fahrenheit: multiply the Centigrade temperature by 1.8; add 32. To convert from Fahrenheit to Centigrade: subtract 32 from the Fahrenheit temperature; multiply the result by .555.
| ºC | ºF | ºC | ºF | ºC | ºF |
|---|---|---|---|---|---|
| -5 | 23 | 23 | 73.4 | 190 | 374 |
| -3 | 26.6 | 24 | 75.2 | 195 | 383 |
| -1 | 30.2 | 25 | 77 | 200 | 392 |
| 0 | 32 | 26 | 78.8 | 205 | 401 |
| 1 | 33.8 | 27 | 80.6 | 210 | 410 |
| 3 | 37.4 | 28 | 82.4 | 215 | 419 |
| 5 | 41 | 29 | 84.2 | 220 | 428 |
| 7 | 44.6 | 30 | 86 | 225 | 437 |
| 10 | 50 | 31 | 87.8 | 230 | 446 |
| 12 | 53.6 | 32 | 89.6 | 235 | 455 |
| 15 | 59 | 33 | 91.4 | 240 | 464 |
| 18 | 64.4 | 175 | 347 | 245 | 473 |
| 20 | 68 | 180 | 356 | 250 | 482 |
| 22 | 71.6 | 185 | 365 | 255 | 491 |
Grams, kilos, ounces, pounds
Europeans, of course, enjoy the benefits of using grams, kilos, and liters. Writing, scaling, and interpreting formulas is always more cumbersome when using ounces, pounds, and quarts. Fortunately, more and more professional formulas are being written in metric. This means that a thorough knowledge of the metric system is important. Below is a list of the most common conversions.
| TO CONVERT | TO | MULTIPLY BY |
|---|---|---|
| Ounces | Grams | 28.35 |
| Grams | Ounces | .035 |
| Pounds | Kilograms | .454 |
| Kilograms | Pounds | 2.21 |
| Fluid Ounces | Milliliters | 28.35 |
| Quarts | Liters | .91 |
| Liters | Quarts | 1.1 |
| Gallons | Liters | 3.65 |
Fractions and decimals
To convert ounces into pounds, divide the ounces by 16:
To convert pounds into ounces, multiply the portion of a pound by 16:
For example, to convert 1.75# do the following:
To convert a fraction of an ounce into decimals, divide the top portion of the fraction by the bottom portion:
To convert the decimal portion of an ounce into a fraction, first represent the decimal as a fraction, then find the lowest common denominator. For example, to convert .5 oz. do the following:
