A blood pressure of 118/68 is a good reading. It falls squarely within the normal category, which the American Heart Association and American College of Cardiology define as below 120/80 mmHg. Both your systolic number (118, the pressure when your heart beats) and your diastolic number (68, the pressure between beats) are in a healthy range.
Where 118/68 Falls on the Scale
Current guidelines break adult blood pressure into four categories:
- Normal: below 120 systolic and below 80 diastolic
- Elevated: 120 to 129 systolic and below 80 diastolic
- Stage 1 hypertension: 130 to 139 systolic or 80 to 89 diastolic
- Stage 2 hypertension: 140 or higher systolic or 90 or higher diastolic
At 118/68, you’re near the top of the normal range for systolic pressure but comfortably below every threshold for concern. A reading of just two points higher on the top number (120/68) would technically shift into the “elevated” category. So while 118/68 is normal, it’s worth keeping an eye on if your systolic readings have been trending upward over time.
What About the Diastolic Number?
A diastolic reading of 68 is healthy. Low blood pressure (hypotension) isn’t diagnosed unless you drop below 90/60 mmHg, so 68 is well above that floor. Some people worry that a lower diastolic number signals a problem, but 68 sits right in the middle of the expected range for a healthy adult.
Where diastolic pressure does become a concern is when it dips below 60, especially in older adults. Very low diastolic readings can mean the heart muscle isn’t getting enough blood flow between beats. At 68, that’s not an issue.
Pulse Pressure: The Gap Between the Two Numbers
The difference between your systolic and diastolic readings is called pulse pressure. For a reading of 118/68, that gap is 50 mmHg. A normal pulse pressure typically falls between 40 and 50, so you’re at the upper edge of the expected range.
Pulse pressures consistently above 50 mmHg have been linked to a higher risk of heart disease, arrhythmias, and stroke. A single reading at exactly 50 isn’t a red flag on its own, but if your top number tends to climb while your bottom number stays in the mid-to-low 60s, it’s worth mentioning to your doctor. This pattern becomes more common with age as arteries stiffen.
Does Age Change What “Normal” Means?
The short answer: not much. For decades, some physicians assumed that higher blood pressure was acceptable in older adults, with systolic targets as lenient as 150 mmHg for people over 65. That thinking has shifted significantly. A 2025 review of trials in adults 75 and older found that pushing systolic blood pressure below 130 mmHg was associated with a 39% lower risk of cardiovascular events and a 45% lower risk of cardiovascular death compared to more relaxed targets.
So whether you’re 30 or 75, a reading of 118/68 is favorable. For older adults in particular, maintaining a systolic number below 120 puts you ahead of updated clinical targets.
Making Sure Your Reading Is Accurate
A single blood pressure reading is a snapshot, not a diagnosis. Your numbers can swing by 10 to 20 points depending on when and how you measure. To get a reliable reading at home, the CDC recommends a few steps:
- Timing: Avoid food, drinks, and caffeine for 30 minutes beforehand. Empty your bladder first.
- Positioning: Sit with your back supported and both feet flat on the floor for at least five minutes before measuring. Don’t cross your legs.
- Arm placement: Rest your arm on a table so the cuff sits at chest height.
- Stay still and quiet: Don’t talk during the reading.
If you got 118/68 at a doctor’s office after rushing in from the parking lot, your resting number at home might actually be a few points lower. Conversely, if you measured right after coffee or exercise, your true baseline could be lower still. Taking two or three readings a minute apart and averaging them gives you the most reliable picture.
What This Reading Means Long Term
Blood pressure in the normal range is one of the strongest predictors of cardiovascular health over time. Keeping your systolic pressure below 120 and your diastolic below 80 is associated with the lowest risk of heart attack, stroke, and kidney disease. You don’t need medication or aggressive lifestyle changes at 118/68, but the habits that maintain this number (regular movement, moderate salt intake, adequate sleep, and a healthy weight) are the same ones that keep it from drifting upward with age.
Blood pressure tends to rise gradually over the years. Checking it at least once a year, or more often if you have a family history of hypertension, helps you catch any upward trend before it crosses into a higher category.