# Convert 30 miles to kilometers

How many kilometers are 30 miles?

miles (mi)
30 miles = 48.28 kilometers

## Precise decimal and fraction answers

The conversion in kilometers rounded to six significant decimal places is 30 mi = 48.280320 km. The precise fraction answer is 48 876/3125 km.

### Decimal Precision

Conversion from one to ten decimal places

• 30 mi = 48.3 km
• 30 mi = 48.28 km
• 30 mi = 48.280 km
• 30 mi = 48.2803 km
• 30 mi = 48.28032 km
• 30 mi = 48.280320 km
• 30 mi = 48.2803200 km
• 30 mi = 48.28032000 km
• 30 mi = 48.280320000 km
• 30 mi = 48.2803200000 km

## How many kilometers are in a mile?

There are 1.609 kilometers in one mile. A mile is 1.609 times longer than a kilometer. A kilometer is 62.14% of a mile

## Miles to kilometers conversion factor and formulas

Formula

The conversion factor between miles and kilometers is 1.609. This represents the ratio of kilometers per one mile. To calculate the value in kilometers, we can either multiply by the conversion factor or divide by its inverse.

### Multiplication

To convert from miles to kilometers, multiply miles by 1.609.
The formula is expressed as:
mi × 1.609 = km

### Division

Alternatively we can divide by the inverse conversion factor to get the same result.
The inverse of 1.609 is 1/1.609 or 0.621. To convert from miles to kilometers, divide miles by 0.621.
The formula is expressed as:
mi ÷ 0.621 = km

To convert 30 miles to kilometers, multiply 30 miles by 1.609.
30 mi × 1.609 = 48.28 km

## How long are 30 miles?

Real world scale examples to visualize the length of 30 miles / 48.28 kilometers

• 1.13 times the length of a marathon race (26.6 mi)
• 14% of the distance from London to Paris (214 mi)
• 12% of the altitude of the International Space Station (254 mi)

Converting miles to kilometers is a conversion between units from separate unit systems - miles are US Customary / UK Imperial defined units while kilometers are metric (SI) .

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Customary/Imperial Unit

The mile is a measure of distance between two points used within the US Customary and British Imperial units of measure. It is customarily used to measure large geographical distances. The mile is officially defined as 5,280 feet, 1,760 yards or 1,609.344 meters. The abbreviation or for miles is 'mi' or sometimes 'm' as in miles per hour. The mile's origin stems from the Roman mile, which marked the distance the Roman army could march over 1,000 (mille) paces.

SI Unit

Within the SI (metric) system of measurement, the kilometer is officially defined as being equal to 1,000 meters. It is commonly used as measurement for geographic distances in similar circumstances where a mile would be used in the U.S. Internationally it is spelled 'kilometre' whereas the U.S. spells it 'kilometer'. The symbol for a kilometer is km however k is sometimes used.

## Reverse this conversion

Convert from kilometers to miles instead.

## 30 miles to other length units

### Metric

• 30 mi = 48.28 km
• 30 mi = 48,280.32 m
• 30 mi = 482,803.2 dm
• 30 mi = 4,828,032 cm
• 30 mi = 4.828×107 mm
• 30 mi = 4.828×1010 µ
• 30 mi = 4.828×1013 nm

### Imperial/U.S.

• 30 mi = 30 mi
• 30 mi = 52,800 yd
• 30 mi = 158,400 ft
• 30 mi = 1,900,800 in

## References and Citations

1. National Institute of Standards and Technology (NIST) General Tables of Units of Measurement
2. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

## Decimal conversions for 30 mi to km

mi km
30.01 mi 48.296 km
30.02 mi 48.313 km
30.03 mi 48.329 km
30.04 mi 48.345 km
30.05 mi 48.361 km
30.06 mi 48.377 km
30.07 mi 48.393 km
30.08 mi 48.409 km
30.09 mi 48.425 km
30.1 mi 48.441 km
30.11 mi 48.457 km
30.12 mi 48.473 km
30.13 mi 48.49 km
30.14 mi 48.506 km
30.15 mi 48.522 km
30.16 mi 48.538 km
30.17 mi 48.554 km
30.18 mi 48.57 km
30.19 mi 48.586 km
30.2 mi 48.602 km
30.21 mi 48.618 km
30.22 mi 48.634 km
30.23 mi 48.65 km
30.24 mi 48.667 km
30.25 mi 48.683 km
30.26 mi 48.699 km
30.27 mi 48.715 km
30.28 mi 48.731 km
30.29 mi 48.747 km
30.3 mi 48.763 km
30.31 mi 48.779 km
30.32 mi 48.795 km
30.33 mi 48.811 km
30.34 mi 48.827 km
30.35 mi 48.844 km
30.36 mi 48.86 km
30.37 mi 48.876 km
30.38 mi 48.892 km
30.39 mi 48.908 km
30.4 mi 48.924 km
30.41 mi 48.94 km
30.42 mi 48.956 km
30.43 mi 48.972 km
30.44 mi 48.988 km
30.45 mi 49.005 km
30.46 mi 49.021 km
30.47 mi 49.037 km
30.48 mi 49.053 km
30.49 mi 49.069 km
30.5 mi 49.085 km
mi km
30.51 mi 49.101 km
30.52 mi 49.117 km
30.53 mi 49.133 km
30.54 mi 49.149 km
30.55 mi 49.165 km
30.56 mi 49.182 km
30.57 mi 49.198 km
30.58 mi 49.214 km
30.59 mi 49.23 km
30.6 mi 49.246 km
30.61 mi 49.262 km
30.62 mi 49.278 km
30.63 mi 49.294 km
30.64 mi 49.31 km
30.65 mi 49.326 km
30.66 mi 49.342 km
30.67 mi 49.359 km
30.68 mi 49.375 km
30.69 mi 49.391 km
30.7 mi 49.407 km
30.71 mi 49.423 km
30.72 mi 49.439 km
30.73 mi 49.455 km
30.74 mi 49.471 km
30.75 mi 49.487 km
30.76 mi 49.503 km
30.77 mi 49.52 km
30.78 mi 49.536 km
30.79 mi 49.552 km
30.8 mi 49.568 km
30.81 mi 49.584 km
30.82 mi 49.6 km
30.83 mi 49.616 km
30.84 mi 49.632 km
30.85 mi 49.648 km
30.86 mi 49.664 km
30.87 mi 49.68 km
30.88 mi 49.697 km
30.89 mi 49.713 km
30.9 mi 49.729 km
30.91 mi 49.745 km
30.92 mi 49.761 km
30.93 mi 49.777 km
30.94 mi 49.793 km
30.95 mi 49.809 km
30.96 mi 49.825 km
30.97 mi 49.841 km
30.98 mi 49.857 km
30.99 mi 49.874 km