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keyword

21.5c to f

Monthly search volume and cost-per-click data for "21.5c to f" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=21.5c+to+f&country=us" +--------------+------------------+ | volume | 2,900 | | cpc | $0 | | competition | 0 | | country | US | | updated | 2026-05-26 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
9c to f 5,400 $0 4/20
21.5 c to f 2,900 $0 18/20
21.5 celsius to fahrenheit 2,900 $0 16/20
21.5 c to fahrenheit 2,900 $0 7/20
19.5c to f 1,900 $0 4/20
18.5c to f 1,600 $0 4/20
21.4 celsius to fahrenheit 260 $0 4/20
what is 21.5 celsius in fahrenheit 210 $0 9/20
21.5 degrees celsius to fahrenheit 170 $0 9/20
21.5 celsius 110 $0 8/20

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://app.seodata.dev/v1/keyword?q=21.5c+to+f&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt