Anaerobic Threshold Calculator

Estimate your anaerobic threshold heart rate.

Anaerobic threshold HR (bpm) 161.5

Max heart rate (bpm) 190

Formula: AT ≈ percent × max HR (220 − age)

Step-by-step with your numbers:

1. Values used:

2. Age = 30 yr

3. Threshold % of max HR = 85 %

5. Anaerobic threshold HR = 161.5bpm

6. Max heart rate = 190bpm

Did we solve your problem today?

The anaerobic threshold is the effort above which lactate builds up faster than the body clears it.

The math behind it

It typically falls around 85–90% of max HR; trained athletes push it higher.

Age 30 (max 190) at 85% → about 162 bpm.

Why train at threshold?

It raises the pace you can hold before fatigue sets in.