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Millimeter / Inch Conversion Chart
To convert millimeters to inches, multiply the mm dimension by .03937.
To convert inches to millimeters, multiply the inch dimension (in decimal
form) by 25.4. If your number is a fraction, divide the numerator by the
denominator to reach the decimal form.
| mm |
inch |
mm |
inch |
| 2mm |
.0787 |
11mm |
.4331 |
| 3mm |
.1181 |
12mm |
.4724 |
| 4mm |
.1575 |
13mm |
.5512 |
| 5mm |
.1968 |
16mm |
.6299 |
| 6mm |
.2362 |
18mm |
.7087 |
| 7mm |
.2756 |
20mm |
.7874 |
| 8mm |
.3150 |
22mm |
.9449 |
| 9mm |
.3543 |
24mm |
1.102 |
| 10mm |
.3973 |
26mm |
1.811 |
|
Conversion from Size to
Cubic Zirconia Weight to Diamond Weight
|
Round Shape |
| |
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
1.25 |
0.013 |
0.01ct |
|
1.5 |
0.023 |
0.015 |
|
1.75 |
0.237 |
0.02 |
|
2 mm |
0.06 |
0.03 |
|
2.25 |
0.08 |
0.04 |
|
2.5 |
0.10 |
0.05 |
|
2.75 |
0.15 |
0.06 |
|
3 mm |
0.20 |
0.10 |
|
3.25 |
0.25 |
0.13 |
|
3.5 |
0.30 |
0.16 |
|
3.75 |
0.35 |
0.20 |
|
4 mm |
0.43 |
0.25 |
|
4.25 |
0.52 |
0.3 |
|
4.6 |
0.62 |
0.36 |
|
4.75 |
0.72 |
0.42 |
|
5 mm |
0.62 |
0.48 |
|
5.25 |
0.98 |
0.58 |
|
5.5 |
1.10 |
0.65 |
|
5.75 |
1.27 |
0.75 |
|
6 mm |
1.45 |
0.85 |
|
6.25 |
1.65 |
0.97 |
|
6.5 |
1.85 |
1.09 |
|
6.75 |
2.05 |
1.20 |
|
7 mm |
2.30 |
1.35 |
|
7.5 |
2.80 |
1.65 |
|
8 mm |
3.35 |
1.97 |
|
8.5 |
4.00 |
2.35 |
|
9 mm |
4.70 |
2.76 |
|
9.5 |
5.50 |
3.74 |
|
10 mm |
6.40 |
3.76 |
|
11 |
8.50 |
5.00 |
|
12 |
11.00 |
6.47 |
|
13 |
13.90ct |
6.18ct |
|
14 |
17.40 |
10.24 |
|
15 |
21.00 |
12.35 |
|
16 |
25.30 |
14.88 |
|
17 |
30.00 |
17.54 |
|
18 |
35.30 |
20.76 |
|
19 |
43.59 |
25.64 |
|
20 |
52.00 |
30.63 |
 |
|
Oval Shape |
|
|
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
5x3 mm |
0.35ct |
0.21ct |
|
6x4 |
0.75 |
0.44 |
|
7x5 |
1.40 |
0.82 |
|
7.5x5.5 |
1.70 |
1.00 |
|
8x6 |
2.10 |
1.24 |
|
9x7 |
3.20 |
1.80 |
|
10x8 |
4.60 |
2.71 |
|
10.5x8 |
4.90 |
2.88 |
|
11x9 |
6.20 |
3.64 |
|
12x10 |
7.70 |
4.52 |
|
14x12 |
12.52 |
7.36 |
|
16x12 |
17.41 |
10.24 |
|
18x13 |
19.40 |
11.41 |
|
20x15 |
19.64 |
17.43 |
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Pear Shape |
|
|
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
5x3 mm |
0.40ct |
0.24ct |
|
6x4 |
0.68 |
0.40 |
|
7x5 |
1.20 |
0.71 |
|
8x5 |
1.40 |
0.82 |
|
8.5x5.5 |
1.70 |
1.00 |
|
9x6 |
2.15 |
1.26 |
|
10x7 |
3.20 |
1.88 |
|
12x8 |
5.00 |
2.94 |
|
14x9 |
7.50 |
4.41 |
|
15x10 |
9.00 |
5.29 |
|
18x11 |
16.00 |
9.41 |
|
19x12 |
17.00 |
10.00 |
|
23x14 |
26.00 |
15.29 |
|
|
Marquise |
|
|
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
4x2mm |
0.15ct |
0.08ct |
|
5x2.5 |
0.24 |
0.14 |
|
6x3 |
0.42 |
0.25 |
|
7x3.5 |
0.57 |
0.34 |
|
8x4 |
0.90 |
0.53 |
|
9x4.5 |
1.15 |
0.73 |
|
10x5 |
1.70 |
1.00 |
|
11x5.5 |
2.25 |
1.32 |
|
12x6 |
2.85 |
1.66 |
|
13x6.5 |
3.60 |
2.11 |
|
14x7 |
4.50 |
2.65 |
|
15x7.5 |
3.50 |
3.23 |
|
16x8 |
7.50 |
4.41 |
|
17x8.5 |
8.30 |
4.88 |
|
20x10 |
13.00 |
7.63 |
|
22x11 |
16.50 |
9.71 |
|
30x15 |
36.50 |
21.00 |
|
|
Emerald Shape |
|
|
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
5x3 mm |
0.40ct |
0.24ct |
|
6x4 |
0.68 |
0.40 |
|
6.5x4.5 |
1.20 |
0.71 |
|
7x5 |
1.40 |
0.82 |
|
8x6 |
1.70 |
1.00 |
|
8.5x6.5 |
2.15 |
1.26 |
|
9x7 |
3.20 |
1.88 |
|
9.5x7.5 |
5.00 |
2.94 |
|
10x8 |
7.50 |
4.41 |
|
11x9 |
9.00 |
5.29 |
|
12x10 |
16.00 |
9.41 |
|
14x12 |
17.00 |
10.00 |
|
13x12 |
26.00 |
15.29 |
|
18x13 |
28.48 |
16.75 |
|
20x15 |
45.77 |
16.92 |
|
|
Heart Shape |
|
|
C.Z. |
Diamond |
|
Size |
Weight |
Weight |
|
4x4 |
0.50ct |
0.29ct |
|
5x5 |
0.75 |
0.44 |
|
6x6 |
1.30 |
0.76 |
|
6.5x6.5 |
1.65 |
0.97 |
|
7x7 |
2.10 |
1.24 |
|
8x8 |
3.10 |
1.82 |
|
9x9 |
4.40 |
2.59 |
|
10x10 |
4.00 |
3.53 |
|
11x11 |
8.00 |
4.70 |
|
12x12 |
10.40 |
6.12 |
|
13x13 |
14.94 |
8.79 |
|
14x14 |
15.70 |
9.24 | |
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