keyword

when to use that and which

Monthly search volume and cost-per-click data for "when to use that and which" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=when+to+use+that+and+which&country=us" +--------------+------------------+ | volume | 1,900 | | cpc | $0.04 | | competition | 0.07 | | country | US | | updated | 2026-05-27 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
that vs which	12,100	$0.05	20/20
which vs that	12,100	$0.06	20/20
which and that	4,400	$0	20/20
which or that	4,400	$0	20/20
when to use which or that	1,900	$0.04	20/20
when use which or that	1,900	$0.53	20/20
when to use which and that	1,900	$0.53	16/20
when to use that vs which	720	$0.03	18/20
which or that use	320	$0.02	17/20
when to use which or that examples	40	$0.02	17/20

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=when+to+use+that+and+which&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