How it works
Same shell, every tool.
Fill in the inputs
Each tool steps through its inputs left to right — duty, route, conditions, whatever the calculation actually needs. Numeric values stay in the units your team already uses, so nothing gets lost in a unit conversion.
Read the result
What comes back depends on the question. Some tools compare options, some check clauses, some produce a signed record — see the three result patterns for which is which.
Check the working, not just the answer
Every screen carries a working panel alongside the result: each step of the calculation shown as a label and a monospace expression, in the order it was actually computed, so the final number can be checked by hand against the standard it cites. Nothing is a black box — if a figure looks wrong, the working shows exactly where to look.
One account, every tool
Sign in once and every tool your organisation has access to is available from your account. An admin manages who on the team holds a seat.
Export the record
Every export carries the same disclaimer as the screen it came from: preliminary engineering and compliance aids, requiring review by a competent person against licensed standards and project-specific conditions.