When did "pi tshirt" start trending?

Google Trends first listed it as a rising search on 4 March 2023 in the US, the United Kingdom. It has been recorded 60 times since, peaking at 20,300% on 14 March 2025.

Where is "pi tshirt" rising right now?

Nowhere in the last 24 hours. It was last seen rising on 15 March 2026 (US, GB).

Is "pi tshirt" seasonal?

It has not been rising in the last 90 days, but over the last 24 months it rose in 2 separate months, peaking at 20,300% in March 2025. That is a seasonal pattern: plan for the season rather than the week.

How many people search for "pi tshirt"?

Google Ads counted an average of 1,600 searches a month over the year to Jul 2024, peaking at 8,100 in Mar 2024. Demand is seasonal — plan for March and have listings live by January.

Can I put "pi tshirt" on a shirt or a listing?

Yes — it is a topic search with no person, team, character, title or brand in it, the kind print-on-demand designs are made of. Anyone may design for it; keep the wording your own.

Is it a good keyword for print-on-demand designs?

It passes the print-on-demand filter (people search for it together with shirts). Check the trademark status of any brand or name in the phrase before using it on a listing.

pi tshirt

Google Trends rising search · first seen 4 Mar 2023

"pi tshirt" is a search that Google Trends flagged as rising among people searching for shirts, first seen on 4 Mar 2023 in the US and the United Kingdom. It has been recorded 60 times since; its biggest jump was 20,300% on 14 Mar 2025 — a Breakout, Google's label for growth above 5,000%. It was last seen rising on 15 Mar 2026.

👕 shirt POD Design topic ✅ Free to use

First seen: 4 Mar 2023; 3 years ago
Last seen: 15 Mar 2026; 5 months ago
Times recorded: 60; 5 window/country combos
Peak: 20,300%; 14 Mar 2025
Countries: 🇺🇸 🇬🇧; US, GB
Windows: 4H · 1D · 7D · 30D; ever rising in

Right now (last 24 hours)

Not in any rising list in the last 24 hours. Last seen 5 months ago.

Last 24 months

Nothing in the last 90 days — this one is out of season. Highest growth recorded in each month.

Search demand by month

Google Ads · data through Jul 2024

Searches peak in March — 8,100 a month at the top against ~720 in August, the quietest month. To catch the season, listings should be live by January.

~1,600 searches/month on average Ad competition: High

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FAQ

When did "pi tshirt" start trending?: Google Trends first listed it as a rising search on 4 March 2023 in the US, the United Kingdom. It has been recorded 60 times since, peaking at 20,300% on 14 March 2025.
Where is "pi tshirt" rising right now?: Nowhere in the last 24 hours. It was last seen rising on 15 March 2026 (US, GB).
Is "pi tshirt" seasonal?: It has not been rising in the last 90 days, but over the last 24 months it rose in 2 separate months, peaking at 20,300% in March 2025. That is a seasonal pattern: plan for the season rather than the week.
How many people search for "pi tshirt"?: Google Ads counted an average of 1,600 searches a month over the year to Jul 2024, peaking at 8,100 in Mar 2024. Demand is seasonal — plan for March and have listings live by January.
Can I put "pi tshirt" on a shirt or a listing?: Yes — it is a topic search with no person, team, character, title or brand in it, the kind print-on-demand designs are made of. Anyone may design for it; keep the wording your own.
Is it a good keyword for print-on-demand designs?: It passes the print-on-demand filter (people search for it together with shirts). Check the trademark status of any brand or name in the phrase before using it on a listing.

Source: Google Trends rising searches. Updated 4 Sep 2026, 21:06 UTC.