Tools
Practical calculators and utilities for engineering and operations work
These calculators cover the numbers maintenance, reliability and engineering teams reach for most: equipment effectiveness, failure and repair rates, the cost of lost production, asset criticality, schedule performance, conveyor capacity and historian storage. Each one is free, runs in your browser and needs no sign in. Nothing you enter leaves your device.
Every calculator shows its working. The page explains the formula, walks through an example using the same numbers the tool opens with, and lists the mistakes that most often skew the result, so you can check the output rather than take it on trust.
OEE Calculator
Overall Equipment Effectiveness from availability, performance and quality.
Open tool →MTBF, MTTR and Availability Calculator
Reliability, maintainability and inherent availability from failure history.
Open tool →Cost of Downtime Calculator
Put a dollar figure on lost production and standby labour, per event and per year.
Open tool →Criticality Matrix Calculator
Score an asset's consequence and likelihood on a 5×5 matrix to get its criticality band, the strategy it points to and a register template.
Open tool →Conveyor Capacity Calculator
Capacity on a troughed belt from width, speed, trough angle and bulk density, plus belt speed from the drive pulley and belt length.
Open tool →Time-Series Data Volume Calculator
Size a historian or telemetry platform from tag count, scan rate, compression and retention.
Open tool →Schedule Compliance Calculator
How much of the planned schedule gets done, and how much is reactive break-in work.
Open tool →Weibull Reliability Calculator
Reliability, failure probability, hazard rate, B10 life and mean life from a Weibull shape and scale.
Open tool →Life Cycle Cost Calculator
Whole of life cost of an asset as a present value and an equivalent annual cost, from purchase, operating, maintenance, overhaul and disposal.
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