EVTool is a simplified instrument that allows to approach the estimated value of ecosystem services adapted to the available information. The tool focuses on key ecosystem services within three categories: provisioning (wild fish), regulating and maintenance (global climate regulation), and cultural (recreation and visual amenity). For all cases, the tool provides three tiers of precision for estimating the economic value of ecosystem services, depending on the quality of available data: cutting-edge (requires detailed, location-specific data), advanced (based either on detailed data from a different location -advanced-detailed, not local- or on general data from the same location -advanced-local, not detailed-), and entry-level (relies on general data from a different location).