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PRICE: £10.99 SALE PRICE £4.00 +VAT

The Metric Wonder Cup is a clever measuring device that holds and measures up to two cups of liquid or dry ingredients using a sliding section to increase or decrease the volume of the cup. As well as measuring in cups, it also measures in pints, teaspoons, tablespoons, ounces, fractions of cups, 1/4 and 1/2 a litre, as well as up to 500 millilitres all in one convenient measuring tool.

Using the size setting on the side, the two-part sliding design creates a cup size to match whatever measurement you need from zero all the way up to two measuring cups, making it the most adaptable measuring gadget on the market.

And it works just as well with liquids – like oils and nectars – as it does with any dry ingredients you can think of. It really is the most handy all-in-one measuring device, and is super-easy to use and super-easy to clean. It can be washed in the dishwasher without issue and will last for decades.

Not only is it a fabulous measuring tool, it can even be used to form perfectly shaped raw veggie burgers or cookies! Click here to watch Karen using the Metric Wonder Cup for making Veggie Nut Burgers.

Simple to clean, easy to use and very versatile – you’ll wonder how you ever managed without it.

Made and imported from the USA. Discreetly bears the former green and purple “Karen Knowler The Raw Food Coach” logo at the base of the clear plastic sliding “sleeve”.


Product Type Measuring cup
Finish White
Weight (lbs) N/A
Dimensions 3” W x 3” L x 6” H (76mm W x 76mm x L x 152mm H)
  • Measures liquid or dry food up to a two-cup capacity
  • Also measures teaspoons, tablespoons, litres, pints, ounces and millilitres
  • Easy to clean
Usage Domestic use
Warranty 1 year
Karen Knowler


This is one of my most favourite kitchen gadgets – I have loved it for years and knew it just had to be part of our kitchen equipment range! Although I also own a set of conventional measuring cups, I find the Metric Wonder Cup even more useful  and versatile as it measures so much more than just cups – this saves me carrying around a lot of different measuring tools because with this product it’s all there in one. Not only that, but quite by accident I discovered that it also makes perfectly uniform burgers, cookies and raw cheese rounds, so it’s even more than a brilliant measuring tool! I truly believe every kitchen should have one.


UK Delivery Address

Was £12.50 including shipping

£4.00 + VAT and postage and packaging (£6.30 total)

Click here to purchase >>

EU Delivery Address

Was £12.50 including shipping

£4.00 + VAT and postage and packaging (£8.30 total)

Click here to purchase >>

Please note that this metric wonder cup is available to send within the UK and rest of the EU only.