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About CookingCalculator.co.uk

A UK cooking reference built to answer one question at a time, quickly, without a life story in front of it.

Last reviewed 10 September 2026.

What this site is

CookingCalculator.co.uk is a set of 112 UK cooking calculators: roasting times by weight, oven temperature and gas mark conversions, grams and cups, portions per person, cake tins, brines, leftovers, timers and a planner that turns several dishes into one cooking schedule.

Metric measures and UK conventions come first, because that is what British kitchens, packaging and recipes use. American cups, sticks of butter and fluid ounces are supported wherever they appear in recipes, and we say which fluid ounce we mean.

How the numbers are produced

Nothing on this site is generated on the fly by a language model. Every cooking time comes from a written rule stored in one place, minutes per kilogram, a fixed extra allowance, an oven temperature, a safe core temperature and a resting time, and every calculator reads the same rule. If turkey guidance changes, it changes once.

Where food safety is involved we follow published Food Standards Agency guidance and link to it, with the date we last checked the link and the wording. How we work out the numbers explains this in full.

What we will not do

We would rather say we have no reliable guidance for something than invent a number. There are no accounts, no newsletter wall and no tracking of what you cook. Your meal plan and timers are stored on your own device only.

Getting in touch

Corrections are welcome, particularly on cooking times and safety wording. See the contact page.