Kitchen Conversion Chart
Every conversion chart in every kitchen drawer is a table somebody typed, and typed tables have typos. Gas mark 4 is 180°C and a fan oven wants twenty degrees less — but is the Fahrenheit column consistent with the Celsius one beside it? A chart nobody can check is a chart you simply have to trust.
What this generator does
Computes each row from a single governing conversion — the exact ounce, the exact inch, the Fahrenheit formula — and then converts it back to prove the row.
How to use this tool
- Choose the chart you want: oven, weights, volumes or lengths.
- Read it on screen, or copy it into a document to print.
- The checks underneath show each row converting back to where it came from.
- Stick the printed page inside a cupboard door.
Understanding the controls
- Chart
- Oven temperatures with gas marks, fan and conventional Celsius and Fahrenheit; weights in ounces, grams and pounds; volumes in cups, millilitres and fluid ounces; or lengths in inches, centimetres and millimetres.
Common use cases
- Following a recipe written in gas marks on an electric oven
- Turning an American recipe's cups into millilitres
- Converting ounces to grams for a scale that only does one
- Setting a fan oven from a conventional temperature
- A chart for the inside of a cupboard door that is right
How this generator works
Every row but one kind is computed rather than typed: an ounce is exactly 28.349523125 grams, an inch exactly 2.54 centimetres, and Fahrenheit is nine fifths of Celsius plus thirty-two. Each row is then converted back and compared with the value it came from, so a typo cannot survive. The gas marks are the exception — they are a convention rather than a formula, so they are looked up, and the check confirms they rise with the temperature and sit at the Celsius figures they are conventionally paired with. The fan column is a fixed twenty degrees below the conventional one, which is checked as an exact difference rather than eyeballed.
Randomness and fairness
Nothing is random. The chart is the same every time, which is rather the point of a chart.
For how randomness is produced across the whole site, see how Generate Random works.
Limitations and good to know
- A US cup is taken as 240ml; some recipes and some measuring jugs use 236.6 or 250.
- Fluid ounces here are UK ones, which are slightly smaller than US fluid ounces.
- The twenty-degree fan adjustment is the usual guidance; ovens vary and some manufacturers say twenty-five.
- Gas marks are a British convention and the pairings above are the standard ones rather than a physical law.
Privacy and your data
The chart is computed in your browser from fixed conversions. Nothing is sent anywhere.
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