A calibration label does not always mean your instruments are in tolerance and making accurate measurements. If your instrument is out-of-specification (out-of-tolerance), you can no longer trust your test results.

Are you 100% confident your calibration service partner provides an accurate calibration?

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When was the last time you verified the information on your calibration report? Older instruments used to calibrate your test equipment puts you at risk for lower accuracy. Or even worse, critical parameters may not be tested at all. For example, if you do not see two signal generators listed on the report showing the test equipment used for calibration, the third order intermodulation distortion (TOI) specification you needed was not calibrated. This increases the risk that your test equipment is out-of-specification and your test results may, therefore, be incorrect.

Keysight measures every critical specification for your application. Accurate test measurements ensure your product meets its intended specification, reducing risk and avoiding unnecessary costs.

Application Note

Reduce Risk with a Better Measurement Process


Calibration is your assurance that your test system is performing to specification.

We have data from 10 calibration service providers that show all but one tested less than 50% of the instrument specification. In some cases, less than 25% of the specifications were tested. If your tests rely on the critical measurements not being calibrated, your test equipment is likely out-of-specification. And you can no longer trust your test results. This puts you at enormous risk.



When the pressure is on, costly delays result from waiting on tools, answers, or help. KeysightCare is ensured action, providing a new level of service and support to help your team deliver better results, consistently. As your equipment evolves with the complexity of your design, so should the support you receive. Get faster response, faster access to experts, and faster resolution.

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Send your equipment to us and count on fast, predictable turnaround time.

Instrument Service Options

Local Pick-Up

Get convenient courier-based pickup in countries where available.

Next-Day Courier Service and Shipping Options

Onsite Service

Reduce downtime from days to hours with an onsite service that fits your schedule.

Keysight Onsite Calibration

Onsite Resident Professional

Manage calibrations and repairs with an onsite professional at your site.

Resident Professionals Increase Your Uptime


We measure every specification, every option, every time.

Choose the standard compliance to meet your test strategy

Select the right calibration for your Keysight instruments. Maybe you need measurement uncertainties, guardbanding, an accredited calibration, or a primary standards lab calibration. Alternatively, perhaps your calibration report needs to satisfy a particular ISO or ANSI metrology standard such as IS0 17025:2005 or ANSI Z540.3-2006. Keysight offers a wide range of calibrations to ensure you meet your requirements to your local and global needs.

All Keysight Service centers are accredited to their local accreditation body such as JCSS, CNAS, Poverka, UKAS, ANAB, and so many more.

ISO 17025 Certificates and Scope of Accreditation

View Calibration Service Selection Guide

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One trusted partner. Multi-brands.

Keysight’s expanded calibration services are the convenient way to ensure the ongoing accuracy and availability of all your test assets. We’ll work with you to create a customized solution that includes electronic instruments as well as physical, dimensional, optical and mechanical equipment.

View Local Calibration Service Capabilities


Europe (UK and Ireland)

Asia (Australia)

Solution Brief

One-Stop Calibration Services


Infoline Support Portal

Access Keysight product and service information including warranty dates, calibration certificates, service status, and more.


Worldwide Service Locations

Over 70 service locations use the same automated calibration procedures and repair diagnostics, so you get consistent test results.


ISO 17025 Certification

Meet your local and global accreditation needs with 18 local accreditation bodies and international standards such as ISO 17025 and regional standards such as ANSI Z540.3.


Metrology and Standards

Stay up-to-date on changing compliance requirements with our Keysight metrologists who work with international standards organizations.


Calibration Certificates

Get 24x7 access to your calibration certificates and measurement reports from both the original factory and our global network of service centers.


Measurement Uncertainty Calculation

Learn more about ISO/IEC Guide 98-3:2008 for Expression of Uncertainty in Measurement.


Free Measurement Standards

Get free copies of ISO/IEC Guide 98 and ISO/IEC Guide 99, provided by the International Organization of Legal Metrology (OILM).


YouTube Videos

View Keysight Services videos on YouTube. To learn more about calibration, view the videos on our Calibration Services channel.


Webinar 2016-05-19

Accuracy Matters: Calibration Options for Lab Managers

Accuracy Matters: Calibration Options for Lab Managers

Application Notes 2015.04.23

Get the Calibration You Need

Get the Calibration You Need

White Papers 2018.12.03

Calibration Process Innovation Using Non-Required Guard Banded Testing

Calibration Process Innovation Using Non-Required Guard Banded Testing

Application Notes 2018.12.13

The Six Axes of Calibration

The Six Axes of Calibration

Article Reprints 2015.09.30

Using Calibration to Optimize Performance in Crucial Measurements

Using Calibration to Optimize Performance in Crucial Measurements

White Papers 2018.12.06

Equipment Refresh in a Calibration Laboratory

Equipment Refresh in a Calibration Laboratory

White Papers 2018.12.11

Assurance of Calibration Results

Assurance of Calibration Results

Application Notes 2018.12.13

Selecting a Calibration Vendor

Selecting a Calibration Vendor

White Papers 2018.12.12

Calibration Frequency – Too Much?

Calibration Frequency – Too Much?

Application Notes 2018.12.12

Instrument Design Validation and Calibration Policy

Instrument Design Validation and Calibration Policy

Application Notes 2018.12.13

Defining Calibration Requirements for Electrical Test Equipment

Defining Calibration Requirements for Electrical Test Equipment


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