Target Heart Rates based on Karvonen Formula

 

Age

MHR

50%

70%

80%

85%

95%

Elementary School

6

214

152

175

186

192

203

7

213

152

174

185

191

202

8

212

151

173

185

190

201

9

211

151

173

184

189

200

10

210

150

172

183

189

200

Middle School/Junior High

11

209

147

172

185

190

203

12

208

146

171

183

190

202

13

207

146

170

183

189

201

14

206

146

170

182

188

200

Senior High

15

205

139

165

178

185

198

16

204

138

164

178

184

197

17

203

138

164

177

183

196

18

202

137

163

176

183

196