Free tools
Operational maths, done properly.
Calculators for the numbers industrial teams get asked for and end up rebuilding in a spreadsheet every time. Every one runs in your browser. No sign-up, no email wall, nothing stored.
Safety OSHA incident rate calculator
TRIR, DART, lost time and severity rate from your hours and case counts.
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Reliability MTBF and availability calculator
Mean time between failures, mean time to repair, and uptime for any asset.
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Fleet cost Cost per mile calculator
What a load actually costs to run, and the margin left at your quoted rate.
Open calculator →Why we built these
Every operation we work with keeps the same handful of numbers in a spreadsheet somewhere: the safety rate for the monthly report, the uptime figure the board asks about, the cost of running a truck for a day. The formulas are not complicated. Getting clean inputs is the hard part.
So each calculator shows its working, explains the mistakes that quietly distort the result, and is honest about what it cannot tell you. Use them, bookmark them, send them to whoever rebuilds the spreadsheet next quarter.
These numbers should not
need a spreadsheet.
Opsima captures equipment status, downtime and safety events from the channels your crews already use, then keeps the operational metrics current without anyone rekeying them.