A blood pressure of 104/71 is a good reading. It falls squarely within the normal range of less than 120/80, well above the hypotension threshold of 90/60. For most adults, this is an ideal number to see on a blood pressure monitor.
Where 104/71 Falls on the Scale
Blood pressure is classified into distinct categories. Normal blood pressure is anything below 120/80. Readings between 120-129 systolic (the top number) with a diastolic (bottom number) under 80 are considered elevated. High blood pressure starts at 130/80 and above. On the low end, hypotension is generally defined as a systolic pressure below 90 or a diastolic pressure under 60.
At 104/71, both of your numbers sit comfortably in the normal zone. Your systolic pressure of 104 means the force of blood against your artery walls during each heartbeat is well-controlled. Your diastolic pressure of 71 means the pressure between beats, when your heart is resting, is also healthy. Neither number is close to the high blood pressure cutoff or the low blood pressure threshold.
Why This Reading Is Particularly Healthy
Blood pressure in the low-normal range is associated with lower cardiovascular risk in people who aren’t on blood pressure medication. The heart doesn’t have to work as hard to pump blood through the body, and the artery walls experience less wear over time. A reading like 104/71 suggests your cardiovascular system is functioning efficiently.
This type of reading is common among physically active people. Research published in the Journal of Athletic Training found that endurance athletes typically have systolic pressures ranging from 88 to 145 and diastolic pressures from 45 to 82, with most readings clustering in the low-normal range. If you exercise regularly, a reading of 104/71 is exactly what you’d expect.
When Low-Normal Could Be a Concern
A blood pressure of 104/71 is only a problem if it’s causing symptoms. Some people naturally run on the lower side and feel perfectly fine. Others might experience dizziness, lightheadedness, fatigue, blurred vision, or difficulty concentrating. If you’re getting these symptoms regularly, especially when standing up quickly, the reading is worth discussing with a healthcare provider even though the numbers look normal on paper.
One important distinction: the research on low blood pressure causing harm applies mainly to people who are taking medication to lower their blood pressure. A study in the Journal of the American Heart Association found that treated blood pressure below 120/70 was linked to higher cardiovascular risk compared to a target range of 120-139/70-89. That concern doesn’t apply to people whose blood pressure naturally sits at 104/71 without medication. A naturally low reading and a medically suppressed one are very different situations.
During Pregnancy
If you’re pregnant and saw this number, it’s reassuring. The American College of Obstetricians and Gynecologists defines normal blood pressure in pregnancy as less than 120/80, so 104/71 is right where you want to be. Blood pressure naturally dips during the second trimester before rising again in the third, so some fluctuation is expected. The numbers to watch for during pregnancy are those climbing above 140/90, which could signal preeclampsia.
Making Sure Your Reading Is Accurate
A single reading can be misleading. Blood pressure fluctuates throughout the day based on stress, caffeine, hydration, and even how you’re sitting. The CDC recommends a specific protocol for accurate home readings: avoid food and drinks for 30 minutes beforehand, empty your bladder, and sit with your back supported for at least five minutes before measuring. Keep both feet flat on the floor with your legs uncrossed, and rest the cuffed arm on a table at chest height. Don’t talk during the reading.
Take at least two readings one to two minutes apart. If both come back near 104/71, you can be confident the number is real. The cuff should sit against bare skin, not over a sleeve, and it should be snug without being tight. A cuff that’s too small or too large will give inaccurate results.
What to Do With This Number
If 104/71 is your typical reading and you feel well, there’s nothing you need to change. This is the kind of blood pressure that reduces your long-term risk of heart disease, stroke, and kidney damage. Keep doing what you’re doing: staying active, eating reasonably well, and checking your blood pressure periodically to make sure it stays in range. Blood pressure tends to rise gradually with age, so a healthy baseline now gives you more room as you get older.