Since becoming metric coordinator at the National Institute of Standards and Technology (NIST) in 2005, Elizabeth Benham has worked to support voluntary conversion to the International System of Units (SI), commonly known as the metric system, in the United States. In addition to providing information and assistance to federal, state, and local weights and measures officials, business, industry, educational institutions, and the public concerning the SI, she also identifies opportunities for increasing its understanding and use in trade and commerce. When she’s not extolling the virtues of converting to metric, she enjoys hiking with her 60 kg Rottweiler, Matilda.