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Blood Alcohol Content (BAC) Tables for Men

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1 Hour - 2 Hours - 3 Hours - 4 Hours - 5 Hours - 6 Hours
Click Here for BAC Tables for Women

From:  How to Control Your Drinking by William R. Miller and Richard F. Munoz, 
University of New Mexico 1982 pp. 8-11.

Approximate BAC (mg%) reached during six different time periods.

The following tables allow you to estimate the Blood Alcohol Concentration (BAC) you would reach when drinking over a variety of time periods. Because BAC varies with body weight, number of drinks, the sex of the drinker, and the time over which drinks are consumed, each of these pieces of information is necessary for the calculation.

One drink is defined as having one-half ounce of pure ethyl alcohol; each of the following is considered "one drink."

*10 oz to 12 oz of beer at 4% to 5% alcohol, or
*8 oz to 12 oz of wine cooler at 4% to 6% alcohol, or
*4 oz to 5 oz of table wine at 9% to 12% alcohol, or
*2.5 oz of fortified wine at 20% alcohol, or
*1.25 oz of 80 proof distilled spirits at 40%alcohol, or
*1 oz of 100 proof distilled spirits at 50% alcohol.

After 1 Hour of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

1

021

015

010

007

004

002

001

000

2

058

046

036

030

024

020

018

014

3

095

077

062

053

044

038

035

029

4

132

108

088

076

064

056

052

044

5

169

139

114

099

084

074

069

059

6

206

170

140

122

104

092

086

074

7

243

201

166

145

124

110

103

089

8

208

232

192

168

144

128

120

104

9

317

263

218

191

164

146

137

119

10

354

294

244

214

184

164

154

134

11

391

325

270

237

204

182

171

149

12

428

356

296

260

224

200

188

164

After 2 Hours of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

1

005

000

000

000

000

000

000

000

2

042

030

020

014

008

004

002

000

3

079

061

046

037

028

022

019

013

4

116

092

072

060

048

040

036

028

5

153

123

098

083

068

058

053

043

6

190

154

114

106

088

076

070

058

7

227

185

150

129

108

094

087

073

8

264

216

176

152

128

112

104

088

9

301

247

202

175

148

130

121

103

10

338

278

228

198

168

148

138

118

11

375

309

254

221

188

166

155

133

12

412

340

280

244

208

184

172

148

After 3 Hours of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

2

026

014

004

000

000

000

000

000

3

063

045

030

021

012

006

003

000

4

100

076

056

044

032

024

020

012

5

137

107

082

067

052

042

037

027

6

174

138

108

090

072

060

054

052

7

211

169

134

113

092

078

071

057

8

248

200

160

136

112

096

088

072

9

285

231

186

159

132

114

105

087

10

322

262

212

182

152

132

122

102

11

359

293

238

205

172

150

139

117

12

396

324

264

228

192

169

156

132

13

433

355

290

251

212

186

173

147

14

470

386

315

274

232

204

190

162

After 4 Hours of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

2

010

000

000

000

000

000

000

000

3

047

029

014

005

000

000

000

000

4

084

060

040

028

016

008

004

000

5

121

091

066

051

036

026

021

011

6

158

122

092

074

056

044

038

026

7

195

153

118

097

076

062

055

041

8

232

184

144

120

096

080

072

056

9

269

215

170

143

116

098

089

071

10

306

246

196

166

136

116

106

086

11

343

277

222

189

156

134

123

101

12

380

308

248

212

176

152

140

116

13

417

339

274

235

196

170

157

131

14

454

370

300

258

216

188

174

146

After 5 Hours of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

2

000

000

000

000

000

000

000

000

3

031

013

000

000

000

000

000

000

4

068

044

024

012

000

000

000

000

5

105

075

050

035

020

010

005

000

6

142

106

076

058

040

028

022

010

7

179

137

102

081

060

046

039

025

8

216

168

128

104

080

064

056

040

9

253

199

154

127

100

082

073

055

10

290

230

180

150

120

100

090

070

11

327

261

206

173

140

118

107

085

12

364

292

232

196

160

136

124

100

13

401

323

258

219

180

154

141

115

14

438

354

284

242

200

172

158

130

15

385

310

265

220

190

175

145

16

416

336

288

240

208

192

160

After 6 Hours of Drinking
Body Weight
Number of Drinks

100

120

140

160

180

200

220

240

2

000

000

000

000

000

000

000

000

3

015

000

000

000

000

000

000

000

4

052

028

008

000

000

000

000

000

5

089

059

034

019

004

000

000

000

6

126

090

060

042

024

012

006

000

7

163

121

086

065

044

030

023

009

8

200

152

112

088

064

048

040

024

9

237

183

138

111

084

066

057

039

10

274

214

164

134

104

084

074

054

11

311

245

190

157

124

102

091

069

12

348

276

216

180

144

120

108

084

13

385

307

242

203

164

138

125

099

14

422

338

268

226

184

156

142

114

15

459

369

294

249

204

174

159

129

16

400

272

272

224

192

176

144

  

1 Hour - 2 Hours - 3 Hours - 4 Hours - 5 Hours - 6 Hours
Click Here for BAC Tables for Women

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