One of the most time-consuming and mundane aspects of cooking with old, long-neglected recipes is converting from outdated measures of quantity and temperature to something you can understand and, most importantly, use.

Here is the guide I use to move between a range of measurements.

Useful volume conversions

1 fluid ounce = 2 tbsp = 30ml

4 fluid ounces = ½ cup = 120ml

8 fluid ounces = 1 cup = 240ml

1 pint = 2 cups = 475ml

1 quart = 4 cups = 950ml

Useful mass conversions

1 pound = 16 ounces = 454g

1 ounce = 28.35g

Temperature

approximate guide for oven temperatures

225°F = 108°C
250°F = 122°C
275°F = 135°C
300°F = 149°C
325°F = 163°C
350°F = 175°C
375°F = 190°C
400°F = 205°C
425°F = 219°C
450°F = 230°C
475°F = 246°C
500°F = 260°C

To convert centigrade to Fahrenheit, multiply by 9, divide by 5 and add 32.
To convert Fahrenheit to centigrade, subtract 32, multiply by 5, divide by 9.