A blood pressure of 113/63 is a good reading. It falls below the 120/80 threshold that marks the upper boundary of normal, placing it squarely in the healthy range under both the original 2017 and updated 2025 guidelines from the American Heart Association and American College of Cardiology.
That said, a few details about this specific reading are worth understanding, particularly the diastolic number (63) and what’s called pulse pressure. Here’s what your numbers actually tell you.
Where 113/63 Falls in the Guidelines
Blood pressure categories start at the top and work down. Elevated blood pressure begins at 120 to 129 systolic (the top number) with a diastolic (bottom number) below 80. Stage 1 hypertension starts at 130/80, and Stage 2 at 140/90. Anything below 120/80 is considered normal, and 113/63 fits comfortably there.
The 2025 AHA/ACC guideline, which replaced the 2017 version, sets the overarching treatment goal for all adults at below 130/80. Your reading already clears that target by a wide margin.
Heart Disease Risk at This Level
Readings near 113 systolic carry some of the lowest cardiovascular risk on record. A large study reviewed by the National Heart, Lung, and Blood Institute found that among people with systolic pressure between 110 and 119, only about 4.5 out of every 1,000 experienced a heart attack or stroke over a 10-year period. For comparison, people in the 120 to 129 range had nearly double that rate, at 8.3 per 1,000. In other words, a systolic number in the low 110s is associated with meaningfully better long-term heart health than readings that are still technically “normal.”
Is a Diastolic of 63 Too Low?
A diastolic reading of 63 is on the lower side of normal but not inherently concerning. Most healthcare professionals consider blood pressure too low only when it causes symptoms. There is no single cutoff number that defines “too low” for everyone.
If you feel fine, a diastolic of 63 is not a problem. If you regularly experience any of the following, the reading may warrant a conversation with your doctor:
- Dizziness or lightheadedness, especially when standing up
- Blurred or fading vision
- Persistent fatigue
- Trouble concentrating
- Fainting or near-fainting episodes
A sudden drop of just 20 mmHg in either number can cause dizziness or fainting, so context matters. A person who normally reads 130/80 and suddenly drops to 113/63 might feel off, while someone who consistently reads in this range will likely feel perfectly normal.
What Your Pulse Pressure Reveals
Pulse pressure is the gap between your top and bottom numbers. For a reading of 113/63, that gap is 50. A pulse pressure around 40 is considered ideal, and readings above 60 become a risk factor for heart disease, particularly in older adults. At 50, your pulse pressure is slightly above the textbook ideal but well below the threshold that raises concern. For most people, this number alone wouldn’t prompt any clinical action.
Pulse pressure tends to widen naturally with age as arteries stiffen. If you’re younger, a pulse pressure of 50 is worth keeping an eye on over time. If you’re older, it’s quite typical and not alarming.
Making Sure Your Reading Is Accurate
A single blood pressure reading is a snapshot, not a verdict. Your numbers fluctuate throughout the day based on stress, hydration, caffeine, and even how you’re sitting. The American Heart Association recommends these steps for an accurate home reading:
- Avoid caffeine, smoking, and exercise for at least 30 minutes beforehand
- Empty your bladder before measuring
- Sit quietly for at least five minutes before taking the reading
- Rest your arm on a flat surface at heart level, using a pillow if needed
- Place the cuff on bare skin just above the bend of your elbow
- Don’t talk or use your phone during the measurement
For the most reliable picture, take two readings a minute apart and average them. Do this at roughly the same time each day for several days. A pattern of readings around 113/63 is a strong sign that your blood pressure is genuinely healthy. A one-time reading that seems unusually high or low may just reflect the conditions of that moment.