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Blood pressure 105 over 50 to 90

A top number of 105 is in the Normal range. The bottom number decides the rest: under 80 stays Normal, 80 to 89 is Stage 1, and 90 or higher is Stage 2.

Reviewed by Kaustubh Dabhadkar, MD, MPH, FACC, board-certified cardiologist. Categories follow the 2025 ACC/AHA guideline for adults.

105 over what? The quick answer

105/50 to 79: Normal
105/80 to 89: Stage 1 hypertension
105/90: Stage 2 hypertension

Every 105 reading

Pulse pressure is the top number minus the bottom number. MAP (mean arterial pressure) is the bottom number plus a third of the pulse pressure.

Reading	Category	Pulse pressure	MAP
105/50	Normal	55	68.3
105/51	Normal	54	69
105/52	Normal	53	69.7
105/53	Normal	52	70.3
105/54	Normal	51	71
105/55	Normal	50	71.7
105/56	Normal	49	72.3
105/57	Normal	48	73
105/58	Normal	47	73.7
105/59	Normal	46	74.3
105/60	Normal	45	75
105/61	Normal	44	75.7
105/62	Normal	43	76.3
105/63	Normal	42	77
105/64	Normal	41	77.7
105/65	Normal	40	78.3
105/66	Normal	39	79
105/67	Normal	38	79.7
105/68	Normal	37	80.3
105/69	Normal	36	81
105/70	Normal	35	81.7
105/71	Normal	34	82.3
105/72	Normal	33	83
105/73	Normal	32	83.7
105/74	Normal	31	84.3
105/75	Normal	30	85
105/76	Normal	29	85.7
105/77	Normal	28	86.3
105/78	Normal	27	87
105/79	Normal	26	87.7
105/80	Stage 1	25	88.3
105/81	Stage 1	24	89
105/82	Stage 1	23	89.7
105/83	Stage 1	22	90.3
105/84	Stage 1	21	91
105/85	Stage 1	20	91.7
105/86	Stage 1	19	92.3
105/87	Stage 1	18	93
105/88	Stage 1	17	93.7
105/89	Stage 1	16	94.3
105/90	Stage 2	15	95

What to do with a 105 reading

Keep checking now and then, the same way each time. Your category comes from the average of many home readings, so one number tells you less than a week of them.

With a bottom number of 80 or higher, the reading is at or above 130/80. In that case: sit quietly for 5 minutes and take two readings a minute apart. If home readings average in this range over a week, share them with your doctor, who will look at them alongside your overall heart risk.

Readings move from minute to minute, and the first one usually runs a few points higher. The home measuring guide covers how to get a reading you can trust, and the 7-day home average turns a week of readings into the number your doctor uses. To check any reading, use the category checker.

Common questions

Is 105/70 high blood pressure?

105/70 is in the Normal range of the 2025 ACC/AHA chart, with a top number under 120 and a bottom number under 80. One reading is a snapshot: the guideline places you by the average of readings taken on separate occasions.

Is 105/80 high blood pressure?

105/80 is in the Stage 1 hypertension range of the 2025 ACC/AHA chart, because the bottom number is 80 to 89. One reading is a snapshot: the guideline places you by the average of readings taken on separate occasions.

Is 105/90 high blood pressure?

105/90 is in the Stage 2 hypertension range of the 2025 ACC/AHA chart, because the bottom number is 90 or higher. One reading is a snapshot: the guideline places you by the average of readings taken on separate occasions.

What is the MAP of 105/80?

About 88.3 mmHg. Mean arterial pressure is the bottom number plus a third of the pulse pressure: 80 + 25/3. The pulse pressure is 25.

This page is educational and does not provide medical advice, diagnosis, or treatment. Categories describe numbers for adults; they are not a diagnosis, and they are not a substitute for care from your own doctor.

SOURCES

Jones DW, et al. 2025 AHA/ACC/AANP/AAPA/ABC/ACCP/ACPM/AGS/AMA/ASPC/NMA/PCNA/SGIM Guideline for the Prevention, Detection, Evaluation and Management of High Blood Pressure in Adults (Circulation, 2025): Blood pressure categories (normal under 120/80, elevated 120 to 129 and under 80, stage 1 130 to 139 or 80 to 89, stage 2 140 or 90 and higher); the higher category counts when the two numbers disagree; severe hypertension above 180/120; PREVENT for risk estimation
Understanding Blood Pressure Readings (American Heart Association, reviewed August 14, 2025): Category chart for adults; severe hypertension and hypertensive emergency rows; call 911 above 180/120 with symptoms

Track this automatically with BP Log.

The free iPhone app times two readings a minute apart, averages them, keeps your morning and evening numbers apart, and builds a report for your doctor.

Other ways to track: printable log now, desktop and Excel coming soon