5 km is exactly 3.10685596 miles (don't forget that extra .00685596 of a mile, it could cost you the race).

That comes out to be 3 miles + 564 feet + 2.4 inches.

There are 5,280 feet in a statute mile.

There are 5,280 feet in a US/UK mile.

This is also known as an American mile, British mile, Imperial mile, English mile, or European mile. Its length has been agreed and fixed at precisely 1,609.344 meters by legal statute. Consequently it is also known as the 'statute mile.'

But there are also other types of 'mile.'

List of 'feet in a mile' in some of the more well-known systems of linear measurement:

• 5,280 feet in a statute mile
• 6,080 feet in the UK nautical mile
• 6,080 feet in the aeronautical mile
• 6,076.1155 feet in the International nautical mile (1852 meters)
• 5,279.989 'US Survey feet' in a mile
• 5,920 feet in an old Scots mile
• 5,000 Roman feet in the old Roman mile
• 1500 m 'Metric mile' (used in sports) = 4,921.26 feet
• 1600 m 'Metric mile' (used in some school sports) = 5,249.34 feet
• A 'Data mile' (used in radar) = 6,000 feet

For the number of feet in other 'miles', e.g. Irish, Danish, German, Croatian, Russian and Banska miles/mil/meile/milya etc, see Related links below.

5,280 feet

It depends on the meaning of length. Typically it means a unit of distance but it can also be applied to the passage of time, such as the duration of a piece of music. Thus a time-piece, such as a stopwatch, would be the instrument of choice when measuring a length of time.

For units of distance, there are a huge number of instruments available:

• Calipers and micrometers
• Rulers and meter or yard sticks or line gauges
• tape measures,
• surveyor's wheels,
• micrometers,
• rangefinders
• laser rules.
• Walking wheels
• RADAR
• SONAR
• LIDAR

Which instrument you use largely depends on how accurate the result needs to be (the tolerance), combined with the size of the object or the distance being measured. Generally, the greater the distance, the greater the tolerance.

Measuring tapes are more flexible than straightedge rulers and can accurately measure much greater distances, typically up to 10m. Today, they are made from cloth or fiberglass (such as a tailor's measure) or from a stiff, curved metallic ribbon that can retract into a coil (such as a carpenter's or constructor's measure). Surveyor's tapes are often made from durable plastic or fiberglass and allow more accurate measuring over much greater distances, usually up to 100m or more.

Micrometers are used when measuring the size of distant objects. Modern micrometers are often GPS-based systems used to perform geodetic measurements.

Micrometers and calipers are generally used in engineering applications where straightedge rulers would be impractical, such as when measuring the diameter of a column or when measuring the gauge of a threaded bolt.

Laser rulers are a new type of measuring device, designed to specifically measure the distance to an object, where a laser beam can be reflected back to the device. Handheld devices are generally low-power devices so their accuracy is limited to within 100m or so, but more powerful lasers can measure greater distances, including the distance to the moon (where reflectors were specifically placed during the moon landings in the late 60's and early 70's).

In microscopes, there is commonly a glass slide marked with an engraving that goes down to a few microns (micrometer scale). The glass slide with the engraved lines is known as a graticule or reticule).

To measure distance traveled, a pedometer is carried by walkers to measure distance walked. An Odometer is fitted to vehicles, including bicycles, to measure distances traveled (miles or kilometers).

You may use a ruler.

Examples of common instruments used for measuring length are the ruler, (for measuring milimeters, centimeters, inches, and 1 foot), the yardstick, (which is 3 feet long, [36 inches], and measures milimeters, centimeters, inches, and about 1 meter, {3.28084 feet}). There are also tape measurers that can measure all of the previously listed measurements and vary on the longest length they can measure. Units of length are based on feet or meters. Tools for measuring length range from simple rulers to lasers. A ruler
I would say a ruler or a tape measure.

1 US gallon = 3.785411784 liters.

1 Imperial (UK) gallon = 4.54609188 liters.

1 liter = 0.26417205 US gallons

1 liter = 0.21996919 Imperial (UK) gallons

Conversion to other units:

1 gallon [US, liquid] = 4 US quarts exactly

0.133681 ft3 and

128.000 fluid ounces and

0.003785 m3 and

3785.411 cm3 and

3785.411 ml

Note that a liter is constant across the world, so a US liter = a UK, British, English, Canadian, Indian, Chinese, etc... liter. 3.785 liters per gallon.

In a US gallon... 128 ounces

Both US gallons and "Imperial" (UK) gallons contain 8 pints - but the US pint is 16 fluid ounces while the Imperial pint is 20 fluid ounces.

So if you're working in Imperial gallons the answer is 160 fluid ounces.

It's quite a big difference so worth double-checking which units you're supposed to be using!

To know the weight of a certain volume you need to know the specific gravity of the fluid. In other words: the weight of one US gallon of water is not the same as the weight of one US gallon of gasoline.

1 gallon [US, liquid] = 128 ounce [US, liquid]

1 Imperial gallon = 160 Imperial fluid ounces
128 fluid ounces = 1 gal I'm happy to help =D

In the US, 1 cup = 8 fluid ounces (*not identical to the avoirdupois ounce which is weight)

In the US, one standard measuring cup contains 8 fluid ounces, but there is also a dry measure using the term cup, equal to 8 ounces.

The UK cup is equal to 10 Imperial ounces, which are equal to 0.96 US ounces, because they are based on the avoirdupois (weight) ounce.

This standard - as with standard spoon measurements - varies from country to country. As well, ordinary coffee cups can vary greatly in capacity, so standard measures depending on the country of origin of a recipe should always be used, rather than those mismatched cups no longer part of dinner sets, which sit in the kitchen cupboard.

Fluid ounces are an volume measurement which is not the same as the weight of an item. Volume measurements are how much of a container is filled which is totally different to how much an item weighs. A cup of chopped carrot will weigh more than a cup of chopped marshmallow.

In many cases some variation in quantities doesn't matter at all, but - especially in baking - the use of different size cups for measuring can invite disaster. So use standard measures, and check the country of origin of the recipe in case ther standard measures are different.

8 ounces
8 ounces in a cup

1 kilogram is a little over 2.2 pounds.

63 kilograms is equal to 154.3 pounds.