How do you calculate the next calibration due date?

The calculator applies your interval to the last calibration date. It then adjusts schedule intensity using the selected usage factor and generates future due dates.

What does due soon mean?

Due soon indicates the next due date is within 30 days. Overdue means the due date has already passed.

Can I export reminders to calendar apps?

Yes. You can download an ICS file and also open a prefilled Google Calendar event for the next due date.

Free Tool

Instrument calibration due date calculator

Calculate the next calibration due date and generate a 12-cycle reminder schedule. Adjust by usage intensity, export to ICS, and add the next due date to Google Calendar.

Instrument setup

Set your baseline interval and usage profile.

Instrument name

Instrument type

Last calibration

Interval

Interval unit

Usage intensity

Reminder schedule

Updates instantly as you change inputs.

Next due date

Effective interval

Instrument

Cycle	Due date	Days from previous	Status vs today

Planning aid only. Final due date policy should follow your controlled quality procedure and risk decisions.

How to use this due date planner

Start with your documented interval, then apply usage intensity to reflect real workload. High-use instruments often need shorter cycles to reduce out-of-tolerance risk.

Use the generated schedule in team planning meetings.
Recalculate after failed calibrations or major maintenance.
Export reminders to avoid manual spreadsheet misses.

Calibration due date FAQ

Can I use days instead of months? Yes. This tool supports days, weeks, and months.

What if my instrument is overdue? The status will show overdue; prioritize calibration and log the event for traceability.

Does this replace calibration software? It helps planning. Full tracking still requires event history, attachments, and alerts.

Need this schedule tracked automatically?

Move from manual planning to live reminders, instrument timelines, and audit-ready exports in one place.

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