Document and Entity Information - USD ($)	12 Months Ended
	Mar. 27, 2021	May 21, 2021	Sep. 25, 2020
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Mar. 27, 2021
Current Fiscal Year End Date	--03-27
Document Fiscal Year Focus	2021
Document Transition Report	false
Entity File Number	0-19357
Entity Registrant Name	Monro, Inc.
Entity Incorporation, State or Country Code	NY
Entity Tax Identification Number	16-0838627
Entity Address, Address Line One	200 Holleder Parkway
Entity Address, City or Town	Rochester
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	14615
City Area Code	585
Local Phone Number	647-6400
Title of 12(b) Security	Common Stock, par value $.01 per share
Trading Symbol	MNRO
Security Exchange Name	NASDAQ
Entity Well Known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
ICFR Auditor Attestation Flag	true
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 1,331,800,000
Entity Common Stock Shares Outstanding		33,492,878
Documents Incorporated by Reference [Text Block]	DOCUMENTS INCORPORATED BY REFERENCEPortions of the registrant’s definitive Proxy Statement for its 2021 Annual Meeting of Shareholders to be held hereafter are incorporated by reference into Part III of this report.
Entity Central Index Key	0000876427
Amendment Flag	false
Document Fiscal Period Focus	FY