It depends on what you are trying to measure. Measuring the length of a playing field in centimetres will give absurdly large numbers whereas in metres the number will be sensible. On the other hand, the length of a paper clip is best measured in centimetres.
You could use cm, meters (eg. 0.18cm ) or millimetres . A mix of cm and mm should be best for accuracy .
Cm
1 hand equals 0.1016 meter.
A centimetre is smaller than a kilometre.A centimetre is roughly the width of a finger. A kilometre is approximately the same length as one thousand seven-year-olds.True storyx x x x x
A hand is a unit of measurement that is typically used with horses. A hand is equivalent to four inches. To measure the height of a horse, measure from the top of the withers (high point where the mane starts on the back) down to their legs.
As far as using a practical unit, centimeters would indeed be effective in measuring a hand.
You would be more likely to measure a fish tank in centimeters because it is typically smaller and requires more precise measurements. A swimming pool, on the other hand, is usually larger and would be measured in meters or feet.
A gram is a measure of weight, a centimetre is a measure of distance. So, coffee is sold by gram. Unless you are having a short or a long black
Mass is the measure of the weight of an object (grams, pounds, ect.) whereas length is the measure of the distance from one endpoint to another (inches, meters, ect.).
Square meters and cubic meters are units used to measure different dimensions - area and volume, respectively. To convert square meters to cubic meters, you would need to know the height or depth of the object in question. Without that information, it is not possible to directly convert 100 square meters to cubic meters.
Absolutely. Photographic light meters are designed to measure light for photographic exposure (in a film-speed/shutter-speed/aperture combination), but many hand-held photo light meters can measure light in footcandles, which is a common scale. If you look on places like eBay, you can find inexpensive, digital, brand new meters which read out in Lux or Lumens. Some may read in footcandles as well. It's not difficult to convert from one measure to another (there should be internet calculators which would do it easily).