READING LOOKUP

Blood pressure 120 over 50 to 105

A top number of 120 is in the Elevated range. The bottom number decides the rest: under 80 stays Elevated, 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.

120 over what? The quick answer

120/50 to 79: Elevated
120/80 to 89: Stage 1 hypertension
120/90 to 105: Stage 2 hypertension

Every 120 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
120/50	Elevated	70	73.3
120/51	Elevated	69	74
120/52	Elevated	68	74.7
120/53	Elevated	67	75.3
120/54	Elevated	66	76
120/55	Elevated	65	76.7
120/56	Elevated	64	77.3
120/57	Elevated	63	78
120/58	Elevated	62	78.7
120/59	Elevated	61	79.3
120/60	Elevated	60	80
120/61	Elevated	59	80.7
120/62	Elevated	58	81.3
120/63	Elevated	57	82
120/64	Elevated	56	82.7
120/65	Elevated	55	83.3
120/66	Elevated	54	84
120/67	Elevated	53	84.7
120/68	Elevated	52	85.3
120/69	Elevated	51	86
120/70	Elevated	50	86.7
120/71	Elevated	49	87.3
120/72	Elevated	48	88
120/73	Elevated	47	88.7
120/74	Elevated	46	89.3
120/75	Elevated	45	90
120/76	Elevated	44	90.7
120/77	Elevated	43	91.3
120/78	Elevated	42	92
120/79	Elevated	41	92.7
120/80	Stage 1	40	93.3
120/81	Stage 1	39	94
120/82	Stage 1	38	94.7
120/83	Stage 1	37	95.3
120/84	Stage 1	36	96
120/85	Stage 1	35	96.7
120/86	Stage 1	34	97.3
120/87	Stage 1	33	98
120/88	Stage 1	32	98.7
120/89	Stage 1	31	99.3
120/90	Stage 2	30	100
120/91	Stage 2	29	100.7
120/92	Stage 2	28	101.3
120/93	Stage 2	27	102
120/94	Stage 2	26	102.7
120/95	Stage 2	25	103.3
120/96	Stage 2	24	104
120/97	Stage 2	23	104.7
120/98	Stage 2	22	105.3
120/99	Stage 2	21	106
120/100	Stage 2	20	106.7
120/101	Stage 2	19	107.3
120/102	Stage 2	18	108
120/103	Stage 2	17	108.7
120/104	Stage 2	16	109.3
120/105	Stage 2	15	110

What to do with a 120 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 120/70 high blood pressure?

120/70 is in the Elevated range of the 2025 ACC/AHA chart, with a top number of 120 to 129 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 120/80 high blood pressure?

120/80 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 120/90 high blood pressure?

120/90 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 120/80?

About 93.3 mmHg. Mean arterial pressure is the bottom number plus a third of the pulse pressure: 80 + 40/3. The pulse pressure is 40.

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