MeasureMate is a free unit converter that runs entirely in your browser. There is nothing to install and no account to create — open the page, type a number, and get the answer. It covers the everyday measurement families — length, weight, volume, temperature, area, speed, pressure and more — alongside a cooking mode built for the messy reality of recipes.
Why we built it
We built MeasureMate because most converters get cups to grams wrong. Cups measure volume, grams measure weight, and the bridge between them is density — which depends entirely on what is in the cup. A cup of flour weighs about 120 grams; a cup of honey weighs nearly three times that. Plenty of tools quietly treat every ingredient like water and hand back a single misleading number. MeasureMate stores a real density for every ingredient it lists, so flour, sugar, butter and cocoa each get their own correct answer.
Where our numbers come from
The standard unit conversions use exact international definitions rather than rounded folk figures. The inch, foot, yard, mile, pound and ounce follow the 1959 international yard and pound agreement — one inch is exactly 2.54 centimetres, one pound exactly 453.59237 grams — and metric units follow the SI definitions. The only error you will ever see is rounding in the final displayed digits.
Ingredient densities come from published spoon-and-level baking charts, principally King Arthur Baking's ingredient weight chart and the USDA FoodData Central database, normalised to the US 240 mL cup. Where sources differ slightly, we use the value most consistent with the spoon-and-level method.
An honest note on accuracy
Kitchen conversions are approximations by nature. How you fill the cup, the humidity in your kitchen, and the brand and grind of an ingredient all nudge the weight, so even a well-sourced density lands within a few percent rather than dead on. For precision baking — bread, pastry, macarons — use a digital scale and a recipe written in grams. For everything else, an ingredient-aware conversion gets you comfortably close.
Independent and free
MeasureMate is an independent project. It is not owned by a kitchenware brand or a recipe network, and it is free to use, supported by the advertising you see on each page. If you spot a unit we are missing or a density that looks off, we would genuinely like to hear about it — the contact page is the quickest route, and the FAQ answers the questions we hear most.