Goal: Type one kickoff date, and every project due-date moves by itself. No manual math, no missed sleep.
Duplicate the Google Sheet: Duplicate the Google Sheet Tracker
(Google Sheets → File ▸ Make a Copy )

| Column | Meaning | Formula |
|---|---|---|
| Kickoff | The project start date you type once (named range Kickoff) | (typed by you) |
| Days After Kickoff | How many days until this milestone | (plain number) |
| Due Date | Auto-adds Days After to Kickoff | =Kickoff + B5 |
| Status | Dropdown: Not Started / In Progress / Review / Completed | (data-validation list) |
| Days Left | Countdown to Due Date | =C5 - TODAY() |
| Progress | Tiny bar that fills with status | =SPARKLINE(SWITCH(D5,"Completed",1,"Review",0.8,"In Progress",0.4,0),{"charttype","bar";"max",1}) |
| Column | What to do | Example |
|---|---|---|
| A Milestone | Rename or add rows | “Concepts Out”, “Beta Build”, etc. |
| B Days After Kickoff | Enter whole numbers | 3, 5, 10 |
| C Due Date | Leave the formulas | They update for you |
Formula logic:
Row 4 (Kickoff) →
=B1(reads the kickoff date)Each later row →
=C[row-1] + B[row]