# Convert kilometers to centimeters

Enter the number of kilometers you want to convert to centimeters in the text box below. The conversion to length in centimeters will update as you type.

kilometers (km)
1 kilometers = 100,000 centimeters

## Precise decimal and fraction answers

The conversion in centimeters rounded to six significant decimal places is 1 km = 100,000.000000 cm. The precise fraction answer is 100,000 0/1 cm.

### Decimal Precision

Conversion from one to ten decimal places

• 1 km = 100,000.0 cm
• 1 km = 100,000.00 cm
• 1 km = 100,000.000 cm
• 1 km = 100,000.0000 cm
• 1 km = 100,000.00000 cm
• 1 km = 100,000.000000 cm
• 1 km = 100,000.0000000 cm
• 1 km = 100,000.00000000 cm
• 1 km = 100,000.000000000 cm
• 1 km = 100,000.0000000000 cm

## How many centimeters are in a kilometer?

There are 100,000 centimeters in one kilometer. A kilometer is 100,000 times longer than a centimeter. A centimeter is 0.0010% of a kilometer

## Kilometers to centimeters conversion factor and formulas

Formula

The conversion factor between kilometers and centimeters is 100,000. This represents the ratio of centimeters per one kilometer. To calculate the value in centimeters, we can either multiply by the conversion factor or divide by its inverse.

### Multiplication

To convert from kilometers to centimeters, multiply kilometers by 100,000.
The formula is expressed as:
km × 100,000 = cm

### Division

Alternatively we can divide by the inverse conversion factor to get the same result.
The inverse of 100,000 is 1/100,000 or 0. To convert from kilometers to centimeters, divide kilometers by 0.
The formula is expressed as:
km ÷ 0 = cm

A conversion from kilometers to centimeters are units within in the metric (SI) or SI compatible systems.

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.

SI Unit

Within the SI (metric) system of measurement, the centimeter is officially defined as one hundredth (1/100) of a meter. It is commonly used as measurement from shorter lengths. Internationally it is spelled 'centimetre' whereas the U.S. spells it 'centimeter'. The symbol for centimeters is cm.

## Reverse this conversion

Convert from centimeters to kilometers instead.

## 1 kilometers to other length units

### Metric

• 1 km = 1 km
• 1 km = 1,000 m
• 1 km = 10,000 dm
• 1 km = 100,000 cm
• 1 km = 1,000,000 mm
• 1 km = 1×109 µ
• 1 km = 1×1012 nm

### Imperial/U.S.

• 1 km = 0.621 mi
• 1 km = 1,093.613 yd
• 1 km = 3,280.84 ft
• 1 km = 39,370.079 in

## References and Citations

1. International Bureau of Weights and Measures (BIPM) The International System of Units (SI)

## Kilometers to centimeters conversion table

km cm
1 km 100,000 cm
2 km 200,000 cm
3 km 300,000 cm
4 km 400,000 cm
5 km 500,000 cm
6 km 600,000 cm
7 km 700,000 cm
8 km 800,000 cm
9 km 900,000 cm
10 km 1,000,000 cm
km cm
20 km 2,000,000 cm
30 km 3,000,000 cm
40 km 4,000,000 cm
50 km 5,000,000 cm
60 km 6,000,000 cm
70 km 7,000,000 cm
80 km 8,000,000 cm
90 km 9,000,000 cm
100 km 1×107 cm
1,000 km 1×108 cm