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TRL calculator

Tick each level your technology has achieved and note the evidence behind it. Switch to MRL to check manufacturing readiness. Nothing is stored; it all stays in your browser.

Level wording follows the EU Horizon programme TRL scale and the US DoD MRL scale. Unsure what a level means? See the TRL guide.

TRL 1Basic principles observedScientific research is starting to be translated into applied research. Evidence is usually papers and early observations.
TRL 2Technology concept formulatedA practical application is proposed. Work is speculative, with analysis but no experimental proof yet.
TRL 3Experimental proof of conceptAnalytical and laboratory studies validate the critical functions of separate elements of the technology.
TRL 4Technology validated in labBasic components are integrated and tested together in a laboratory environment.
TRL 5Technology validated in relevant environmentIntegrated components are tested in a simulated or relevant environment with realistic supporting elements.
TRL 6Technology demonstrated in relevant environmentA representative prototype or model system is demonstrated in a relevant environment.
TRL 7System prototype demonstration in operational environmentA near-final prototype is demonstrated in the environment where it will actually be used.
TRL 8System complete and qualifiedThe final system is proven to work in its final form through test and demonstration.
TRL 9Actual system proven in operational environmentThe system is proven through successful operation in its real mission or market conditions.