Myocardial oxygen demand rises with both heart rate and pressure, so their product is a simple index of cardiac workload. Resting values are usually 6,000–12,000; a peak value above 25,000 during exercise is a good sign of cardiac fitness.
How to use the Rate Pressure Product Calculator
- Heart rate
- Systolic blood pressure
Results update as you type, and every field accepts the units shown in its menu.
How it works
Enter heart rate and systolic blood pressure taken at the same moment.
Inputs explained
| Field | What to enter |
|---|---|
| Heart rate | In bpm |
| Systolic blood pressure | In mmHg |
Example values
How the main result changes when Heart rate changes and everything else stays at the example values above:
| Heart rate (bpm) | Rate pressure product (mmHg·bpm) |
|---|---|
| 37.5 | 4,500 |
| 56.25 | 6,750 |
| 75 | 9,000 |
| 93.75 | 11,250 |
| 112.5 | 13,500 |
| 150 | 18,000 |
Health note: this calculator is for education and screening only and is not a diagnosis or treatment advice. Discuss your results with a qualified clinician.
Formula
RPP = heart rate × systolic blood pressure
Worked example
Inputs — Heart rate: 75 bpm; Systolic blood pressure: 120 mmHg.
Results — Rate pressure product = 9,000 mmHg·bpm.
Key terms
- RPP
- Rate pressure product, also called double product.
Frequently asked questions
What is a normal RPP?
About 6,000–12,000 at rest.
Why does angina occur at a certain RPP?
Many people with coronary disease get angina at a consistent workload, so RPP helps set exercise limits.
Does RPP measure fitness?
A high peak RPP during a stress test reflects good cardiac capacity.