A blood pressure of 104/61 is a good reading. It falls squarely in the “Normal” category under the 2025 AHA/ACC guidelines, which define normal blood pressure as below 120/80. In fact, research suggests a reading like yours may be better than just normal, offering real cardiovascular advantages over higher readings that still technically qualify as healthy.
Where 104/61 Falls on the Chart
The current blood pressure categories for adults are:
- Normal: below 120 systolic and below 80 diastolic
- Elevated: 120 to 129 systolic with diastolic still below 80
- Hypertension Stage 1: 130 to 139 systolic or 80 to 89 diastolic
- Hypertension Stage 2: 140 or higher systolic, or 90 or higher diastolic
At 104/61, both your numbers sit comfortably in the normal range. Your systolic pressure (the top number, measured when your heart beats) is well below the 120 threshold, and your diastolic pressure (the bottom number, measured between beats) is well below 80.
Lower Normal May Be Better for Your Heart
A study analyzed by the National Heart, Lung, and Blood Institute looked at over 1,400 healthy adults with systolic readings between 90 and 129. The results showed a clear pattern: the lower your blood pressure within the normal range, the fewer heart attacks and strokes over a 10-year period. People with systolic pressure between 100 and 109 (your range) had about 4 cardiovascular events per 1,000 people over a decade. Those in the 120 to 129 range, still technically normal, had roughly double that rate at 8.3 per 1,000.
The study also found that people with lower normal readings had less plaque buildup in their arteries. The average blood pressure among participants was 111/67, and the median heart disease risk was just 3%, but that risk climbed steadily as readings moved toward the upper end of normal.
Is a Diastolic of 61 Too Low?
Your diastolic reading of 61 is not a concern. Harvard Health Publishing notes that for most adults, the goal is to keep diastolic pressure at 60 or higher while maintaining a systolic reading near 120 or a bit below. At 61, you’re right above that floor. A diastolic number only becomes worrisome if it drops well below 60, particularly in older adults, because the heart muscle itself relies on adequate diastolic pressure to receive its own blood supply between beats.
When a Low Reading Is a Problem
Blood pressure in the low-normal range is only a medical issue if it causes symptoms. If you feel fine at 104/61, there’s nothing to treat. Many people, especially those who are physically active or younger, naturally run on the lower side without any problems.
Symptoms that would make a low reading worth investigating include dizziness or lightheadedness, blurred or fading vision, fainting, persistent fatigue, trouble concentrating, or nausea. A sudden drop is more dangerous than a consistently low number. A decline of just 20 points in systolic pressure, say from 110 to 90, can cause dizziness or fainting even though 90 is not an alarming number on its own.
Extreme drops can lead to shock, which looks like cold and clammy skin, rapid shallow breathing, confusion (especially in older adults), and a weak, fast pulse. This is a medical emergency, but it’s a very different situation from a stable 104/61 reading on a home monitor.
Making Sure Your Reading Is Accurate
A single reading can be misleading. To get a number you can trust, the American Heart Association and American Medical Association recommend a specific routine: empty your bladder first, then sit quietly for five minutes before measuring. Sit with your back supported, both feet flat on the floor, and legs uncrossed. Rest your cuffed arm on a flat surface so the cuff sits at heart level. Skipping these steps can shift your reading by several points in either direction.
Taking two or three readings a minute apart and averaging them gives a more reliable picture. If 104/61 is what you consistently see under these conditions, that’s your real blood pressure, and it’s a healthy one.