Convert 3 CM to Inches | Visual Length Comparison

3 CM to Inches Converter

3 centimeters is 1.18 inches.

Visualize 3 Centimeters

An AA battery diameter is 1.45 centimeters; 3 cm is close to the width of two AA batteries put together.

Image showing common items of 3 centimeters with sizes labeled.

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How to convert 3 centimeters to inches?

3 cm *
1 in
2.54 cm
 = 1.1811023622047243 in

Verified size references

3 cm equals 1.1811 inches.

Exact conversion

cm
3
mm
30
m
0.03
″
1.1811
Fractional inches
1 1/8″
Feet and inches
0′ 1 1/8″

Measured comparisons

3 cm30.61 mm: A U.S. half-dollar coin's diameter [1]32 mm: Long side of a full-size SD card [2]40 mm: A table-tennis ball's diameter [3]
  • A U.S. half-dollar coin's diameter: 3 cm is 2% shorter; the ratio is 0.98:1. [1]
  • Long side of a full-size SD card: 3 cm is 6.3% shorter; the ratio is 0.938:1. [2]
  • A table-tennis ball's diameter: 3 cm is 25% shorter; the ratio is 0.75:1. [3]

Interesting Trivia About 3 Centimeters

  • The body length of Dinoponera giant ants is about 3 cm — almost exactly 3 cm.
  • The body length of African driver-ant workers is about 3.4 cm; 3 cm is only about 0.4 cm shorter.

Nearby conversions

1 cm = 0.3937″2 cm = 0.7874″4 cm = 1.5748″5 cm = 1.9685″

Questions about this value

How many inches is 3 cm?

3 cm equals 1.1811 inches.

How was this comparison calculated?

All values are calculated from the published dimensions linked below. 1 inch equals 25.4 mm exactly.

What is 3 cm in fractional inches?

Rounded to the nearest eighth of an inch, 3 cm is 1 1/8″.

Which verified reference is closest to 3 cm?

Closest verified reference: a U.S. half-dollar coin's diameter. Its published dimension is 30.61 mm.

Method and sources

All values are calculated from the published dimensions linked below. 1 inch equals 25.4 mm exactly.

Sources

  1. [1]United States Mint — Coin Specifications
  2. [2]SD Association — SD, SDHC, SDXC and SDUC card form factors
  3. [3]ITTF — Table Tennis 101

Convert 3 cm to common lengths

How many inches are 3 centimeters?

1.1811in

How many feet are 3 centimeters?

0.0984ft

How many yards are 3 centimeters?

0.0328yd

How many milimeters are 3 centimeters?

30.0000mm

How many meters are 3 centimeters?

0.0300m

How many kilometers are 3 centimeters?

0.00003km

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