Centimeters to Inches

Convert centimetres to inches with the exact 2.54 cm factor, a full conversion table and batch mode — instantly, in your browser. Runs entirely in your browser — your numbers never leave this device.

Value in centimetres

Centimetres → Inches

70.866142 in

180 cm = 70.866142 in — also 70 7/8 in

Centimetres to inches — full table, 1 to 200 cm

Centimetres	Inches
1 cm	0.393701 in
2 cm	0.787402 in
3 cm	1.181102 in
4 cm	1.574803 in
5 cm	1.968504 in
6 cm	2.362205 in
7 cm	2.755906 in
8 cm	3.149606 in
9 cm	3.543307 in
10 cm	3.937008 in
11 cm	4.330709 in
12 cm	4.724409 in
13 cm	5.11811 in
14 cm	5.511811 in
15 cm	5.905512 in
16 cm	6.299213 in
17 cm	6.692913 in
18 cm	7.086614 in
19 cm	7.480315 in
20 cm	7.874016 in
21 cm	8.267717 in
22 cm	8.661417 in
23 cm	9.055118 in
24 cm	9.448819 in
25 cm	9.84252 in
26 cm	10.23622 in
27 cm	10.629921 in
28 cm	11.023622 in
29 cm	11.417323 in
30 cm	11.811024 in
31 cm	12.204724 in
32 cm	12.598425 in
33 cm	12.992126 in
34 cm	13.385827 in
35 cm	13.779528 in
36 cm	14.173228 in
37 cm	14.566929 in
38 cm	14.96063 in
39 cm	15.354331 in
40 cm	15.748031 in
41 cm	16.141732 in
42 cm	16.535433 in
43 cm	16.929134 in
44 cm	17.322835 in
45 cm	17.716535 in
46 cm	18.110236 in
47 cm	18.503937 in
48 cm	18.897638 in
49 cm	19.291339 in
50 cm	19.685039 in
51 cm	20.07874 in
52 cm	20.472441 in
53 cm	20.866142 in
54 cm	21.259843 in
55 cm	21.653543 in
56 cm	22.047244 in
57 cm	22.440945 in
58 cm	22.834646 in
59 cm	23.228346 in
60 cm	23.622047 in
61 cm	24.015748 in
62 cm	24.409449 in
63 cm	24.80315 in
64 cm	25.19685 in
65 cm	25.590551 in
66 cm	25.984252 in
67 cm	26.377953 in
68 cm	26.771654 in
69 cm	27.165354 in
70 cm	27.559055 in
71 cm	27.952756 in
72 cm	28.346457 in
73 cm	28.740157 in
74 cm	29.133858 in
75 cm	29.527559 in
76 cm	29.92126 in
77 cm	30.314961 in
78 cm	30.708661 in
79 cm	31.102362 in
80 cm	31.496063 in
81 cm	31.889764 in
82 cm	32.283465 in
83 cm	32.677165 in
84 cm	33.070866 in
85 cm	33.464567 in
86 cm	33.858268 in
87 cm	34.251969 in
88 cm	34.645669 in
89 cm	35.03937 in
90 cm	35.433071 in
91 cm	35.826772 in
92 cm	36.220472 in
93 cm	36.614173 in
94 cm	37.007874 in
95 cm	37.401575 in
96 cm	37.795276 in
97 cm	38.188976 in
98 cm	38.582677 in
99 cm	38.976378 in
100 cm	39.370079 in
101 cm	39.76378 in
102 cm	40.15748 in
103 cm	40.551181 in
104 cm	40.944882 in
105 cm	41.338583 in
106 cm	41.732283 in
107 cm	42.125984 in
108 cm	42.519685 in
109 cm	42.913386 in
110 cm	43.307087 in
111 cm	43.700787 in
112 cm	44.094488 in
113 cm	44.488189 in
114 cm	44.88189 in
115 cm	45.275591 in
116 cm	45.669291 in
117 cm	46.062992 in
118 cm	46.456693 in
119 cm	46.850394 in
120 cm	47.244094 in
121 cm	47.637795 in
122 cm	48.031496 in
123 cm	48.425197 in
124 cm	48.818898 in
125 cm	49.212598 in
126 cm	49.606299 in
127 cm	50 in
128 cm	50.393701 in
129 cm	50.787402 in
130 cm	51.181102 in
131 cm	51.574803 in
132 cm	51.968504 in
133 cm	52.362205 in
134 cm	52.755906 in
135 cm	53.149606 in
136 cm	53.543307 in
137 cm	53.937008 in
138 cm	54.330709 in
139 cm	54.724409 in
140 cm	55.11811 in
141 cm	55.511811 in
142 cm	55.905512 in
143 cm	56.299213 in
144 cm	56.692913 in
145 cm	57.086614 in
146 cm	57.480315 in
147 cm	57.874016 in
148 cm	58.267717 in
149 cm	58.661417 in
150 cm	59.055118 in
151 cm	59.448819 in
152 cm	59.84252 in
153 cm	60.23622 in
154 cm	60.629921 in
155 cm	61.023622 in
156 cm	61.417323 in
157 cm	61.811024 in
158 cm	62.204724 in
159 cm	62.598425 in
160 cm	62.992126 in
161 cm	63.385827 in
162 cm	63.779528 in
163 cm	64.173228 in
164 cm	64.566929 in
165 cm	64.96063 in
166 cm	65.354331 in
167 cm	65.748031 in
168 cm	66.141732 in
169 cm	66.535433 in
170 cm	66.929134 in
171 cm	67.322835 in
172 cm	67.716535 in
173 cm	68.110236 in
174 cm	68.503937 in
175 cm	68.897638 in
176 cm	69.291339 in
177 cm	69.685039 in
178 cm	70.07874 in
179 cm	70.472441 in
180 cm	70.866142 in
181 cm	71.259843 in
182 cm	71.653543 in
183 cm	72.047244 in
184 cm	72.440945 in
185 cm	72.834646 in
186 cm	73.228346 in
187 cm	73.622047 in
188 cm	74.015748 in
189 cm	74.409449 in
190 cm	74.80315 in
191 cm	75.19685 in
192 cm	75.590551 in
193 cm	75.984252 in
194 cm	76.377953 in
195 cm	76.771654 in
196 cm	77.165354 in
197 cm	77.559055 in
198 cm	77.952756 in
199 cm	78.346457 in
200 cm	78.740157 in

Batch convert — one value per line

How it works

Inches = centimetres ÷ 2.54 (because 1 inch = 2.54 cm exactly)

Centimetres to inches conversion table

Centimetres	Inches
10 cm	3.94 in
20 cm	7.87 in
30 cm	11.81 in
50 cm	19.69 in
75 cm	29.53 in
100 cm	39.37 in
125 cm	49.21 in
150 cm	59.06 in
175 cm	68.90 in
200 cm	78.74 in

The inch is defined as exactly 2.54 centimetres, so converting centimetres to inches is a single division: inches = cm ÷ 2.54. There is no approximation in the factor itself. A length of 100 cm is 100 ÷ 2.54 = 39.3701 inches, and any error in a quoted result comes from rounding the answer, not from the conversion.

This dedicated page exists because a search widget gives one number and stops. Here you get the full table for the sizes people actually look up, a batch mode that converts a pasted list of centimetre values in one pass, and the context the bare number hides: decimal inches are not feet and inches, so a screen size, a waist measurement and a height each need the result read slightly differently. For heights specifically, the Centimeters to Feet and Inches page does the feet-and-inches split.

Round at the end, to the precision the job needs. Two decimal places suit most everyday uses; a workshop measurement may be better expressed as a fraction — 30 cm is 11.81 inches, which is close to 11 and 13/16 inches — and the Millimeters to Inches page shows that fraction view directly.

Worked examples

A ruler length

Input: 30 cm to inches.
Working: 30 ÷ 2.54 = 11.8110.
Result: 30 cm = 11.81 inches

A suitcase dimension

Input: 45 cm to inches.
Working: 45 ÷ 2.54 = 17.7165.
Result: 45 cm = 17.72 inches

A person's height in inches

Input: 172 cm to inches.
Working: 172 ÷ 2.54 = 67.7165.
Result: 172 cm = 67.72 inches (5 ft 7.72 in)

Frequently asked questions

How many inches are in a centimetre?

1 ÷ 2.54 = 0.3937 inches. The more useful direction is usually the exact definition the other way: 1 inch = 2.54 cm. Dividing any centimetre figure by 2.54 gives inches, and multiplying any inch figure by 2.54 gives centimetres back.

Is the 2.54 factor exact or an approximation?

Exact. The inch has been internationally defined as 25.4 millimetres since 1959, so 2.54 cm per inch is a definition, not a measured estimate. Results differ between calculators only because they round the displayed answer to different numbers of decimal places.

How do I convert a list of centimetre values at once?

Use batch mode on this page: paste one value per line and each line is divided by 2.54. That is the practical route for a size chart, a set of product dimensions or a column of measurements copied from a spreadsheet, where a one-at-a-time widget would mean repeating the same step dozens of times.

Why does 100 cm not equal exactly 39 inches?

Because 39 × 2.54 = 99.06 cm, not 100. The exact result is 100 ÷ 2.54 = 39.3701 inches. Listings that call a 100 cm item 39 inches are rounding down by nearly a centimetre — harmless for a shelf description, misleading for a tight fitting.

How do I turn the result into feet and inches?

Divide the inches by 12: the whole number is feet and the remainder is inches. For 172 cm, that is 67.7165 inches, which is 5 feet with 67.7165 − 60 = 7.72 inches left over — 5 ft 7.72 in. The Centimeters to Feet and Inches converter does this split automatically.