Adinand Email Cleaner
The Inbox Time-Cost Calculator
Last reviewed: September 23, 2026 · Markdown version
How much of your year goes to email you never wanted? Choose your numbers — every assumption is yours to set.
Runs entirely in your browser — no form submission, no network request, nothing stored.
The formula, and every assumption in it
Nothing is measured for you and nothing is guessed on your behalf — the three inputs are the three assumptions, and they are all yours. With perDay = emails received per day, pct = the unwanted share, and secs = seconds each unwanted email steals:
unwantedPerYear = perDay × 365 × pct
secondsPerYear = unwantedPerYear × secs
hoursPerYear = secondsPerYear ÷ 3600
workWeeks = hoursPerYear ÷ 40 (shown only at 40 hours or more)Worked example: 100 emails a day, half of them unwanted, 5 seconds each is 100 × 365 × 0.5 = 18,250 unwanted emails a year, × 5 = 91,250 seconds — ≈ 25.3 hours. At 200 a day, 75% unwanted, 10 seconds each: 54,750 emails, 547,500 seconds, ≈ 152.1 hours — about 3.8 work-weeks.
The presets offered are 20 · 50 · 100 · 200 emails a day; a quarter, half, or most of it unwanted; and 2, 5, or 10 seconds each. A work-week is 40 hours. A year is 365 days — every day, because unwanted mail does not take weekends.
| Hours per year | What we make of it |
|---|---|
| Under 10 | Barely a dent. Guard it anyway. |
| 10–39 | A full workday or more, every year, on mail you never asked for. |
| 40–99 | That's ≥ a work-week a year of deleting and scrolling. |
| 100 and up | Weeks of your year. The unsubscribe button is a raise. |
This is an estimate, nothing more. It counts the time you spend handling unwanted mail — glancing, swiping, hunting an unsubscribe link — not the time it takes to get back to what you were doing. Storage is a different question: for that, try the Email Hoarder Calculator or the one-minute storage diagnosis.
Get those hours back.
The best unwanted email is the one you never have to handle. Adinand Email Cleaner groups your Gmail by sender so you can unsubscribe from a sender in one tap, or send its whole backlog to Trash in one tap. Its auto-trash rules are ordinary Gmail filters, so they keep running inside Gmail even if you delete the app.
It fetches only message headers — never bodies or attachments — and does its work on your device. Anything it trashes can still be pulled back out of Gmail's Trash, where Gmail keeps deleted mail for up to 30 days (Delete messages in Gmail, Gmail Help, read 23 September 2026).