square millimetre-square inch conversion

Conversion number between square millimetre [mm²] and square inch [sq in] is 0.0015500031000062. This means, that square millimetre is smaller unit than square inch.

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from square inch to square millimetre conversion

Enter the number in square millimetre:

Decimal Fraction Exponential Expression

[mm²]

eg.: 10.12345 or 1.123e5

Result in square inch

precision	[info]
Decimal:	[!]
Exponential:

Calculation process of conversion value

1 square millimetre = (exactly) `(0.000001) / (0.00064516)` = 0.0015500031000062 square inch
1 square inch = (exactly) `(0.00064516) / (0.000001)` = 645.16 square millimetre
? square millimetre × `(0.000001 ("m²"/"square millimetre")) / (0.00064516 ("m²"/"square inch"))` = ? square inch

High precision conversion

If conversion between square millimetre to square-metre and square-metre to square inch is exactly definied, high precision conversion from square millimetre to square inch is enabled.

Decimal places: (0-800)

square millimetre
Result in square inch:
?

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square millimetre to square inch conversion chart

Start value:	[square millimetre]
Step size	[square millimetre]
How many lines?	(max 100)

visual:

square millimetre	square inch
0	0
10	0.015500031000062
20	0.031000062000124
30	0.046500093000186
40	0.062000124000248
50	0.07750015500031
60	0.093000186000372
70	0.10850021700043
80	0.1240002480005
90	0.13950027900056
100	0.15500031000062
110	0.17050034100068

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Multiple conversion

Enter numbers in square millimetre and click convert button.
One number per line.

Converted numbers in square inch:
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Details about square millimetre and square inch units:

Convert Square millimetre to other unit:

square millimetre

Definition of square millimetre unit: = 1 mm x 1 mm.

Convert Square inch to other unit:

square inch

Definition of square inch unit: ≡ 1 in × 1 in. Area equal with 1 inch by 1 inch square ≡ 0.0254 × 0.0254 = 6.4516×10⁻⁴ m²

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	×10		[mm²]