Cover - shares	3 Months Ended
	Apr. 30, 2022	May 27, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 30, 2022
Document Transition Report	false
Entity File Number	001-41211
Entity Registrant Name	nCino, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	87-4154342
Entity Address, Address Line One	6770 Parker Farm Drive
Entity Address, City or Town	Wilmington
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	28405
City Area Code	888
Local Phone Number	676-2466
Title of 12(b) Security	Common stock, par value $0.0005 per share
Trading Symbol	NCNO
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		110,198,817
Entity Central Index Key	0001902733
Current Fiscal Year End Date	--01-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false