Preventive maintenance schedule template

What does this template do?

Track calendar-based maintenance from the last service date and a manually specified interval.

Next service date equals last service date plus the interval in calendar days. Days overdue compares next service with the fixed review date in B7.

Intervals are fictional examples. Use the equipment manufacturer’s requirements and your maintenance program. Runtime, condition, and safety checks are outside this calendar.

The working tab keeps editable inputs separate from formulas, with room for 60 records. The Notes tab explains the method and how to extend the range. All example records are fictional and can be replaced. Download a workbook format to retain formulas, or CSV when you need calculated values only.

What’s inside

Next service date equals last service date plus the interval in calendar days. Days overdue compares next service with the fixed review date in B7.
60 prepared record rows with blank-row guards
Blue input cells, typed dates and numbers, and frozen column headers
Notes with the method, assumptions, and range-extension instructions

Which tabs does the workbook have?

Tab	What it holds
Worksheet	Track calendar-based maintenance from the last service date and a manually specified interval.
Notes	How to use the workbook, formula method, assumptions, and file format limits.

What formulas does this template use?

This template holds 122 formulas in 166 cells across 2 tabs, so 73% of its cells calculate. They use 7 distinct functions; the longest formula is 124 characters.

Function	Uses	What it does
`IF`	421	one result when a test is true, another when false
`COUNT`	120	counts numeric cells
`ISNUMBER`	60	true for a number
`MAX`	60	largest value
`NOT`	60	reverses true and false
`COUNTIF`	3	counts cells meeting one condition
`COUNTA`	1	counts non-empty cells

Counted from the workbook itself. Only functions that Excel, LibreOffice Calc, Google Sheets and Apple Numbers evaluate the same way are used, so the formulas survive every download format.

How do you use it?

Replace the fictional records in blue cells with your own data. Keep the dark formula cells.
Set the review date in B7 for date calculations.
Read the calculated columns and inspect the results before using them. Clear unused input rows; keep their formulas.
The prepared range holds 60 records in rows 11–70. Extend formulas and summary ranges together if you add more rows.

What is it good for?

Track calendar-based maintenance from the last service date and a manually specified interval
Replacing the labeled fictional records with your own figures
Checking a calculation before adapting it to a larger workbook

Questions about this sheet

How is the result calculated?

Next service date equals last service date plus the interval in calendar days. Days overdue compares next service with the fixed review date in B7.

What assumptions should I check?

Intervals are fictional examples. Use the equipment manufacturer’s requirements and your maintenance program. Runtime, condition, and safety checks are outside this calendar.

Can I add more than 60 records?

Yes. Copy the formula columns into new rows and extend every summary range to include them. Keep inputs and formulas in their original columns.

Are the example records real?

No. All example data is fictional and intended to demonstrate the formulas. Replace it before using the workbook for your own work.

	A	B	C	D	E	F
1	Preventive maintenance schedule
2	Example data — replace the blue input cells with your own.
3	Track calendar-based maintenance from the last service date and a manually specified interval.
4	Populated records	3
5	Services overdue	1
6
7	Review date	2026-10-12
8
9	60 record rows. Blue cells are inputs; dark cells calculate.
10	Asset / service	Owner	Last service	Interval days	Next service	Days overdue
11	Pump A / inspection	Alex	2026-09-08	30	2026-10-08	4
12	Conveyor B / inspection	Sam	2026-10-01	14	2026-10-15	0
13	Fan C / inspection	Jordan	2026-09-20	30	2026-10-20	0
14
15
16

	A	B	C	D
1	Preventive maintenance schedule
2	Method, inputs, and limits for this workbook.
3
4	What it does
5	Track calendar-based maintenance from the last service date and a manually specified interval.
6
7	How to use it
8	Replace the fictional records in blue cells with your own data. Keep the dark formula cells. Set the review date in B7 for date calculations. Read the calculated columns and inspect the results before using them. Clear unused input rows; k…
9
10	Formulas and method
11	Next service date equals last service date plus the interval in calendar days. Days overdue compares next service with the fixed review date in B7.
12
13	Assumptions and limits
14	Intervals are fictional examples. Use the equipment manufacturer’s requirements and your maintenance program. Runtime, condition, and safety checks are outside this calendar.
15
16	Missing numeric inputs