For example, 4 x 2.5 = 10, so four inches is ten centimetres. An inch is approximately 2.5 centimetres, so you simply multiply by 2.5. But if you are up to the challenge, converting inches to centimetres is easier – in our opinion. There’s a lot of mental arithmetic involved in converting imperial to metric or vice versa. What's a quick way to convert cm to inches or vice versa? ![]() This has a wider blade and an impressive 3.3m standout (the distance a blade can extend before it will bend). So if you are going to be using a tape measure by yourself, look for a tape like the STANLEY FATMAX 8M Tape Measure from Amazon. The longer the tape extends the more likely it is to twist. One point to consider is the strength and width of the tape itself. These can accommodate the length and height of most rooms, but obviously if you need one for larger projects consider getting a 10m tape. The popular choices for most DIYers are 5m and 8m tapes. The metal end of a tape measure is known as a hook and can differ from brand to brand (Image credit: Steven Jenkins) What length tape measure do I need?Ĭommon sizes for a tape measure range from 3 metres (10 feet) to 10m (33 feet), but which you need depends very much on your needs. When you measure the outside of a surface you pull the tape which extends the tape by a sixteenth of an inch. When you measure the inside of a surface – like measuring the the inside of a window for blinds after you have just finished painting a bathroom – the hook pushes up against the tape to get an accurate measurement. The tape is short by a sixteenth of an inch, which is the width of the metal hook. The hook is also loose, this isn’t a manufacturing error, it is meant to be like this. Others have teeth which allow you to scribe the surface if you don't have a pencil to make a mark. You may see a hole in the hook, which allows you to grab the head of a nail or screw, ideal when there isn’t an edge to hook onto. While the hook performs the same task it will differ slightly from brand to brand. The metal end on a tape measure is known as a hook and gets its name from the fact that it hooks onto the end of a surface allowing you to pull out the tape so you can measure and mark where needed. What is the metal end of a tape used for? ![]() Class II is not quite as accurate having a 0.002% margin of error, or 2.3mm on a 10m tape.Ĭheaper tape measures often don’t have an accuracy marking, but are generally still good enough for DIY projects where you don’t need definitive accuracy. Class I is the most accurate, these have a 0.001% margin of error, or 1.1mm on a 10m tape. Tape measures that adhere to the standard will have a mark i.e. Tape measures are divided into three classes of accuracy, EC Class I, EC Class II and EC Class III, with Class I and II being the common options found on UK and European tape measures. For example, kitchen units typically come in 150mm, 300mm, 600mm etc sizes, while different types of radiators usually range from 500mm - 600mm in height and 300mm - 1800mm in width. Millimetres is the typical choice for tradesmen when measuring up. Each centimetre is divided into 10 millimetre marks with the half a centimetre (5mm) mark being longer than the other marks. Each 100 cm (1000mm) is marked – typically in red – to indicate each metre. The scale is marked at every centimetre with every 10 cm (100mm) marked in red. This is divided into millimetres, centimetres and metres. The metric scale along the bottom of the tape works in a similar fashion. This helps make it easier to identify the different marks. 1-5 to inform that the mark is 1 foot and 5 inches.Įach inch is broken down into sixteenths of an inch with the eighth of inch mark being longer than the sixteenth, the quarter of an inch mark is longer than both and the half inch mark is the longest of all. ![]() Past the ‘1ft’ mark each inch is marked with a smaller marking i.e. 1, 2, 3 are set an inch apart with red marks typically representing each 12 inches with a foot mark. These are divided into feet, inches and smaller increments. ![]() The top edge of a measuring tape typically contains the imperial measurements. How to read a tape measure for meticulous measuring
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