Dial calipers are more accurate than vernier calipers when it comes to measuring precision. Dial calipers are less expensive and easier to read than vernier calipers. Dial calipers have a higher degree of accuracy. There is no need for conversion factors, such as reading heights from marks within a machine casing, because the markings are already accurate. According to your needs, a single-unit scale may be more cost-effective than multiple-unit scales. However, they are not as widely available as their Vernier cousins, which can electronic display numbers in both millimeter and inch measurements simultaneously.