Metrics to evaluate scientists are always controversial, but a trend is to assess the impact of your research based on how often your papers are cited, rather than where you’ve published them. The h-index is one such metric: an h-index of 25 means that 25 of your papers have been cited at least 25 times. Of course, the h-index will vary with each discipline, depending on how many people are publishing in that research area.
Scholarometer is a twist on this and calculates the hs-index, a metric that normalizes the h-index based on your particular field of research. This allows you to quantitatively compare the impact of authors in different disciplines, with different citation patterns. The assignment of each scientist to fields is by crowdsourcing, placing researchers in multiple fields based on tags suggested in Google Scholar queries. Of course, your hs-index will increase as your career progresses, as long as you continue publishing papers and people continue citing them.
If you want to try Scholarometer, navigate to the link below and download the Firefox or Chrome browser extension.