Song: "If You Love Me Let Me Know"
Artist: Olivia Newton-John
Peak position on the Cashbox Singles chart: #6
Number of weeks on the Cashbox Singles chart: 18
Weekly data:
| Week ending | Rank | Title | Artist | Label |
|---|---|---|---|---|
| April 6, 1974 | 79 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| April 13, 1974 | 63 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| April 20, 1974 | 57 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| April 27, 1974 | 47 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| May 4, 1974 | 41 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| May 11, 1974 | 36 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| May 18, 1974 | 30 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| May 25, 1974 | 23 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| June 1, 1974 | 20 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| June 8, 1974 | 15 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| June 15, 1974 | 11 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| June 22, 1974 | 9 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| June 29, 1974 | 6 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| July 6, 1974 | 6 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| July 13, 1974 | 12 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| July 20, 1974 | 16 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| July 27, 1974 | 17 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
| August 3, 1974 | 43 | If You Love Me Let Me Know | Olivia Newton-John | MCA 40209 |
Rankings greater than 100 are from the Cashbox 'Looking Ahead' charts.