1px 等于多少 pt
px代表的是像素单位，一般为网页中标识字体的单位，而pt代表的是绝对单位，一般为网页中抄标识字体的单位，其换算公式为pt=px*dpi/72，以Windows下的96dpi来计算，可以得出1px等于1*4/3。
换算表
| pt | px | em |
|---|---|---|
|
42pt |
56px |
3.5em |
|
36pt |
48px |
3em |
|
34pt |
45px |
2.75em |
|
32pt |
42px |
2.55em |
|
30pt |
40px |
2.45em |
|
29pt |
38px |
2.35em |
|
28pt |
37px |
2.3em |
|
27pt |
36px |
2.25em |
|
26pt |
35px |
2.2em |
|
25pt |
34px |
2.125em |
|
24pt |
32px |
2em |
|
22pt |
29px |
1.8em |
|
20pt |
26px |
1.6em |
|
18pt |
24px |
1.5em |
|
17pt |
23px |
1.45em |
|
16pt |
22px |
1.4em |
|
15pt |
21px |
1.3em |
|
14.5pt |
20px |
1.25em |
|
14pt |
19px |
1.2em |
|
13.5pt |
18px |
1.125em |
|
13pt |
17px |
1.05em |
|
12pt |
16px |
1em |
|
11pt |
15px |
0.95em |
|
10.5pt |
14px |
0.875em |
|
10pt |
13px |
0.8em |
|
9pt |
12px |
0.75em |
|
8pt |
11px |
0.7em |
|
7.5pt |
10px |
0.625em |
|
7pt |
9px |
0.55em |
|
6.5pt |
8px |
0.5em |
|
5.5pt |
7px |
0.4375em |
|
5pt |
6px |
0.375em |
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