What does a blood pressure of 115/75 mean?

A blood pressure of 115/75 mmHg is a normal, healthy reading. The American Heart Association places normal blood pressure below 120/80 mmHg, and 115/75 sits under both of those thresholds with a little room to spare. If this is your usual result, there is generally nothing to act on beyond keeping the habits that got you there. In short, a 115/75 blood pressure reading is one to maintain rather than fix.

What the two numbers mean

Every reading has a top number and a bottom number, measured in millimetres of mercury (mmHg).

The top number, 115, is your systolic pressure, the force in your arteries each time your heart beats and pushes blood out. The bottom number, 75, is your diastolic pressure, the force while your heart rests and refills between beats.

Both numbers count. A reading is classified by whichever one falls into the higher category, so a normal result needs both values in the normal band. At 115/75, they both are.

Where 115/75 blood pressure sits on the AHA categories

The American Heart Association, with the American College of Cardiology, sorts adult blood pressure into these bands:

• Normal: less than 120/80 mmHg
• Elevated: 120 to 129 systolic and less than 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
• Hypertensive crisis: higher than 180 systolic or higher than 120 diastolic, which needs immediate care

A 115/75 reading is below both normal cut-offs, so it lands clearly in the normal band. You can see the full breakdown in our guide to understanding your blood pressure readings.

Is 115/75 a good reading, and could it be too low?

For most adults it is a good result. Blood pressure in the normal range means your heart and blood vessels are not working against extra pressure, and the Centers for Disease Control and Prevention (CDC) links normal blood pressure to lower long-term risk of heart attack, stroke and kidney disease.

It is very unlikely to be too low. The NHS describes low blood pressure as readings around 90/60 mmHg or below, so 115/75 is comfortably above that line. What matters more than the number is how you feel: if you regularly feel dizzy, lightheaded or faint, mention it to your doctor even when your readings look fine.

One measurement is only a snapshot, since blood pressure rises and falls across the day. If most of your readings look like this, that is the encouraging part. Our guide to what counts as good blood pressure covers how the categories work in everyday life.

How to keep your readings in this range

The habits that hold blood pressure steady are the familiar ones, and consistency beats intensity. Mayo Clinic and the AHA point to the same short list: eat plenty of vegetables, fruit and whole grains, go easy on salt, move most days, keep a healthy weight, limit alcohol, sleep well and manage stress.

Technique matters too. Sit quietly for five minutes first, keep your back supported and your arm at heart level, and measure at the same times each day. Our guides on the best time to take your blood pressure and how to measure it at home walk through the details.

When to see a doctor

A 115/75 reading is not a cause for concern by itself. Book a routine appointment if your readings start reaching 130/80 mmHg or above regularly, if they are trending upward over several weeks, or if you are unsure what your numbers mean for you.

Seek emergency help straight away if a reading reaches 180/120 mmHg or higher, particularly alongside chest pain, shortness of breath, weakness or numbness, trouble speaking, vision changes or a severe headache. The AHA treats this as a hypertensive crisis.

Frequently asked questions

Is 115/75 normal blood pressure?

Yes. The American Heart Association defines normal blood pressure as below 120/80 mmHg, and 115/75 falls below both thresholds, so it sits in the normal range for adults.

Is a blood pressure of 115/75 too low?

For most people it is healthy rather than low. The NHS generally considers blood pressure low nearer 90/60 mmHg, or when readings come with symptoms such as dizziness or fainting. If you feel well, 115/75 is a good result.

How often should I check if my reading is 115/75?

When you are simply keeping an eye on healthy numbers, occasional checks are usually enough, and regularity helps more than frequency. Our guide on how often to check your blood pressure covers what suits different situations.

A single reading is a moment, but a series is a story. Log this reading in CardioVibe and watch your trend take shape over time.

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This is educational information, not medical advice. If you have questions about your blood pressure or take medication for it, speak with your doctor. For guidance, see the American Heart Association or the NHS. In an emergency, call your local emergency number.

Last reviewed: August 2026