Calipers are also known as callipers, are a type of measuring instrument with a high degree of accuracy and little margin for error when measuring length, diameter, thickness or distances. These measuring calipers offer features such as digital displays and vernier scales and are mostly found in physics labs, machine shops and engineering applications. There are many styles of calipers but the principle of measuring are the same and RS offer a large selection of calipers to meet your linear measurement needs.

To learn everything you need to know about calipers and their uses, check out our complete guide to calipers.

What are the key features of mesauring calipers?

Calipers have a robust construction, most commonly made from stainless steel. Some feature anti-glare, or satin finish that makes measurements easier to read. Some calipers will only allow for measurement of the inside or outside, depth or step of a product. However, many do give the option of measuring all of these. Calipers can display measurements in both imperial and metric.

Types of Caliper

Vernier caliper
Digital vernier caliper
Dial caliper
Digital caliper
Spring caliper

Vernier Caliper - Also known as vernier gauges, are particularly useful when you need to measure something round. They feature a fixed main scale and a moving vernier scale. The main scale is normally in tenths of an inch or millimetres while the vernier scale normally measures to the nearest 0.02 millimetres or 0.001 inches.

Dial Caliper - These provide measurements with the same level of accuracy as Vernier calipers. However, instead of using two scales, a dial is used to read the final fraction of an inch or a millimetre on a dial. The measurement taken on a dial caliper is very easy to read.

Digital Caliper - Digital calipers use linear encoders to measure internal and external distances. This is then shown on a digital display which is simple to use and easy to read. Available with metric and imperial conversions so you can accurately measure objects with ease. Digital vernier calipers combine the benefits of both digital and vernier calipers.

Spring Caliper - The primary purpose of spring calipers is to measure the internal and external diameter of an object. They differentiate by the measuring edges and get the name spring caliper by the spring joint that loads onto the nut. To adjust the size of the measuring tips turn the adjuster clockwise or anti-clockwise.

Are there calibration options?

We offer calibration on a wide range of vernier calipers and digital callipers. Browse our range now to view all our latest caliper offers with free next day delivery.

Measuring callipers are essential tools for precise dimensional measurements in various industries. Whether you are a machinist, engineer, carpenter, or hobbyist, these instruments offer reliable and accurate measurements, enabling you to achieve the desired results in your projects.

Want to learn more? Take a look at our vernier calipersguide.