| Cover | Mar. 23, 2022 |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 23, 2022 |
| Entity File Number | 001-40312 |
| Entity Registrant Name | EQRX, INC. |
| Entity Central Index Key | 0001843762 |
| Entity Tax Identification Number | 86-1691173 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 50 Hampshire Street |
| Entity Address, City or Town | Cambridge |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 02139 |
| City Area Code | 617 |
| Local Phone Number | 315-2255 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common stock, par value $0.0001 per share [Member] | |
| Title of 12(b) Security | Common stock, par value $0.0001 per share |
| Trading Symbol | EQRX |
| Security Exchange Name | NASDAQ |
| Warrants to purchase one share of common stock at an exercise price of $11.50 [Member] | |
| Title of 12(b) Security | Warrants to purchase one share of common stock at an exercise price of $11.50 |
| Trading Symbol | EQRXW |
| Security Exchange Name | NASDAQ |
