Convert a single pan dimension between inches and centimetres, then check it against the sizes bakeware is actually sold in — which are rounded, not exact math conversions.
Pan sizes are shown across US, metric, and imperial systems side by side, since recipes and bakeware are labeled differently depending on where they're from — a recipe calling for a '9-inch round' and one calling for a '23cm round' are typically referring to essentially the same pan.
For buying a pan or matching a recipe to what's actually sold in shops, use the common rounded size shown; for precise mathematical conversion between systems, use the exact conversion figure instead — the two will usually be very close, but not always identical.
This tool converts dimension only, not volume — two pans with the same diameter but different depths hold different amounts of batter. If a recipe calls for a pan you don't have and you need a volume-equivalent substitute rather than just a dimension conversion, the Baking Pan Substitute tool is built specifically for that instead.
For buying a pan or matching a recipe to what's sold in shops, use the common rounded size (e.g. 23cm for "9 inch"). For precise maths, such as scaling a recipe by area, use the exact conversion instead.
Pick the closest listed size - a few millimetres either way rarely changes a bake meaningfully. For a bigger mismatch, see the Baking Pan Substitute tool, which matches pans by volume instead of by name.
Yes - two pans with the same diameter but different depths hold different volumes. This tool converts the diameter/dimension only; check the Baking Pan Substitute tool if depth and volume matter for your recipe.
