Emerson Electric (EMR) 11-K Annual report of employee stock purchases

Exhibit 23

Consent of Independent Registered Public Accounting Firm

The Management Review Committee

Emerson Electric Co.

Retirement Savings Plan:

We consent to the incorporation by reference in the registration statements (No. 333-221671) and (No. 333-154362) on Form S-8 of Emerson Electric Co. of our report dated February 9, 2018, with respect to the statements of net assets available for benefits of the Emerson Electric Co. Retirement Savings Plan as of September 30, 2016 and 2017, the related statements of changes in net assets available for benefits for the years then ended, and the supplemental Schedule of Assets Held for Investment Purposes at End of Year – Schedule H, Line 4i as of September 30, 2017, which report appears in the September 30, 2017 annual report on Form 11-K of the Emerson Electric Co. Retirement Savings Plan.

/s/ KPMG LLP

St. Louis, Missouri

February 9, 2018