Cover - shares	9 Months Ended
	Dec. 31, 2022	Feb. 21, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2022
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2023
Current Fiscal Year End Date	--03-31
Entity File Number	000-11882
Entity Registrant Name	B2Digital, Incorporated
Entity Central Index Key	0000725929
Entity Tax Identification Number	84-0916299
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	4522 West Village Drive
Entity Address, Address Line Two	Suite 215
Entity Address, City or Town	Tampa
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33624
City Area Code	(813)
Local Phone Number	961-3051
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		7,899,196,368