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21.5 celsius

Monthly search volume and cost-per-click data for "21.5 celsius" in US.

$ curl "https://api.seodata.dev/v1/keyword?q=21.5+celsius&country=us" +--------------+------------------+ | volume | 110 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-06-07 | +--------------+------------------+
All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
centigrade to fahrenheit 823,000 $0.18 6/20
degrees celsius to fahrenheit 823,000 $0.18 6/20
to celsius to fahrenheit 823,000 $0.04 6/20
21.5 c to f 2,900 $0 20/20
21.5 celsius to fahrenheit 2,900 $0 20/20
21.5c to f 2,900 $0 15/20
21.5 c to fahrenheit 2,900 $0 11/20
what is 21 degrees celsius in fahrenheit 1,300 $0 7/20
what is 21.5 celsius in fahrenheit 210 $0 11/20
21.5 degrees celsius to fahrenheit 170 $0 15/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://api.seodata.dev/v1/keyword?q=21.5+celsius&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt