20pt是多少mm？
20pt = 7.056mm
把7.056mm四舍五入成7mm会差0.794%。这个数值下最好保留小数。
反过来，20mm是多少pt？
20mm = 56.693pt
计算公式: mm = pt × 0.352778
该数值前后的 pt → mm
2 pt0.706mm
4 pt1.411mm
6 pt2.117mm
8 pt2.822mm
10 pt3.528mm
12 pt4.233mm
14 pt4.939mm
16 pt5.644mm
18 pt6.35mm
20 pt7.056mm
22 pt7.761mm
24 pt8.467mm
26 pt9.172mm
28 pt9.878mm
30 pt10.583mm
32 pt11.289mm
34 pt11.994mm
36 pt12.7mm
38 pt13.406mm
40 pt14.111mm