TU Delft has a useful tool: http://dined.io.tudelft.nl/en/database/tool
It’s free and results are metric.
There is also a freely downloadable 1994 lecture book with lots of information regarding anthropometry and chairs - you will have to Google translate it from Dutch:
http://repository.tudelft.nl/islandora/object/uuid:375f6153-19db-4649-b5ca-969b4964132e/?collection=research