Cover - USD ($)	12 Months Ended
	Dec. 31, 2024	Mar. 17, 2025	Jun. 30, 2024
Cover [Abstract]
Document Type	10-K/A
Amendment Flag	true
Amendment Description	This Form 10-K/A, Amendment Number One, (Form 10-K/A) is being filed by Capstone Companies, Inc. (Company) solely to correct certain inadvertent typographical errors contained on page F-26 and page 62 of the Form 10-K Annual Report for the fiscal year ended December 31, 2024, filed by the Company on March 17, 2025 (Original Filing), which typographical errors consisted of: (1) misspelling the first name of Warner Session, a Company Director, as Warren in two notes to the financial statements of the Original Filing; and (2) listing the correct names and titles of the principal executive officer and principal financial officer in the Exhibit List for Exhibits 31.1, 31.2, 32.1 and 32.2; and (3) adding Exhibit 3.1.1.1.1 to the Exhibit List of the Original Filing to state the location in a SEC filing of the text of a 2023 amendment to the Companys Amended and Restated Articles of Incorporation, which amendment was filed as Attachment One to the definitive Information Statement filed by the Company with the Commission on May 25, 2023. Pursuant to Rule 12b-15 under the Securities Exchange Act of 1934, this Form 10-K/A is signed by a duly authorized representative of the Company. It includes, as Exhibits 31.1, 31.2, 32.1 and 31.2, the certifications of the Principal Executive Officer and Principal Financial Officer of the Company pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Except as described above, no other changes have been made to the Original Filing. The Original Filing continues to speak as of the date of the Original Filing, and the Company has not updated the disclosures contained therein to reflect any events which occurred at a date subsequent to the filing of the Original Filing. Accordingly, this Form 10-K/A should be read in conjunction with the Companys other filings with the SEC subsequent to the date of the Original Filing.
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2024
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2024
Current Fiscal Year End Date	--12-31
Entity File Number	000-28831
Entity Registrant Name	CAPSTONE COMPANIES, INC.
Entity Central Index Key	0000814926
Entity Tax Identification Number	84-1047159
Entity Incorporation, State or Country Code	FL
Entity Address, Address Line One	# 144-V 10 Fairway Drive
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Deerfield Beach
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33441
City Area Code	954
Local Phone Number	252-3440
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
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 Public Float			$ 358,899
Entity Common Stock, Shares Outstanding		48,826,864
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	false