Blood pressure reading includes systolic and diastolic pressure values. Systolic blood pressure is the peak pressure, when the heart contracts while pumping blood. Diastolic blood pressure is the drop in pressure, when the heart is at rest between beats.
Often blood pressure is noted as the systolic number above or before the diastolic, such as 120/80 mmHg. (The mmHg is millimeters of mercury, the unit to measure pressure.)
Blood pressure level chart in mmHg
|
Blood Pressure Level & Classification Chart |
||
|
Category |
Systolic (mmHg) |
Diastolic (mmHg) |
|
Optimal blood pressure |
Less than 120 |
Less than 80 |
|
Normal blood pressure |
Less than 130 |
Less than 85 |
|
Prehypertension |
130 to 139 |
85 to 89 |
|
Grade 1 hypertension (mild) |
140 to 159 |
90 to 99 |
|
Grade 2 hypertension (moderate) |
160 to 179 |
100 to 109 |
|
Grade 3 hypertension (severe) |
More than 180 |
More than 110 |
|
Isolated systolic hypertension (Grade 1) |
140 to 159 |
Less than 90 |
|
Isolated systolic hypertension (Grade 2) |
More than 160 |
Less than 90 |
When systolic and diastolic blood pressures fall under different categories, you should use the higher category to classify blood pressure levels. For example, 150/79 mmHg would be stage 1 hypertension.
In addition, you can consider hypertension:
- If your systolic number is 140 or more, you may have hypertension, regardless of your diastolic number.
- If your diastolic number is 90 or more, you may have hypertension, regardless of your systolic number.
Age related healthy blood pressure range.
It is natural that aging loses the elasticity of the arteries as well as increases nutrient requirement, thus blood pressure rises with age. Below is the blood pressure chart to explain blood pressure in-relation to the age.
We came to know from medical studies that the thump rule for the systolic number is 100 plus your age for men (100 plus age minus 10 for female).
|
Age related normal healthy blood pressure range |
||||||
|
Age |
Systolic blood pressure (mmHg) |
Diastolic blood pressure (mmHg) |
||||
|
Minimum |
Average |
Maximum |
Minimum |
Average |
Maximum |
|
|
15 to 19 |
105 |
117 |
120 |
73 |
77 |
81 |
|
20 to 24 |
108 |
120 |
132 |
75 |
79 |
83 |
|
25 to 29 |
109 |
121 |
133 |
76 |
80 |
84 |
|
30 to 34 |
110 |
122 |
134 |
77 |
81 |
85 |
|
35 to 39 |
111 |
123 |
135 |
78 |
83 |
86 |
|
40 to 44 |
112 |
125 |
137 |
79 |
83 |
87 |
|
45 to 49 |
115 |
127 |
139 |
80 |
84 |
88 |
|
50 to 54 |
116 |
129 |
142 |
81 |
85 |
89 |
|
55 to 59 |
118 |
131 |
144 |
82 |
86 |
90 |
|
60 to 64 |
121 |
134 |
147 |
83 |
87 |
91 |