# Heart rate zones explained: what each of the five zones is for

> Training zones split your effort into five bands, from easy walking to an all-out sprint. For a 30-year-old with an estimated maximum of 190 beats a minute, the bands run from 95 to 190. This guide shows how the zones are worked out, what each one feels like and how to spread your week across them.

Published 2026-10-08 by Toolcloak. 4 minute read. Original: https://toolcloak.pages.dev/articles/heart-rate-zones-explained-what-each-of-the-five-zones-is-for
Related free tool: [Heart Rate Zone Calculator](https://toolcloak.pages.dev/tools/heart-rate-zone-calculator)

A fitness tracker shows a number, but a number alone says little. Zones turn it into a plan: this much of your week should feel easy, this much hard, and almost none should be flat-out. It all starts with one estimate, your maximum heart rate.

> **In short**
> - The common estimate is **220 − age** for maximum heart rate. A 30-year-old gets **190 beats per minute (bpm)**.
> - The five zones are **50–60%, 60–70%, 70–80%, 80–90% and 90–100%** of that maximum. At 190, that is 95–114, 114–133, 133–152, 152–171 and 171–190 bpm.
> - The formula is an average and can be **off by 10 bpm or more** for an individual. Use the talk test beside it.
> - This is general fitness information, not medical advice. Check with a doctor before hard training if you have a heart condition or other health concerns.

## Step one: estimate your maximum

Your maximum heart rate is the highest rate your heart can reach during all-out effort. The only exact way to find it is a supervised test, so most people use a formula. The classic one is 220 minus your age. A newer one, often credited to Tanaka and colleagues, is 208 minus 0.7 times your age.

**Estimated maximum heart rate by age (bpm)**

|  | 220 − age | 208 − 0.7 × age |
| --- | --- | --- |
| Age 20 | 200 | 194 |
| Age 30 | 190 | 187 |
| Age 40 | 180 | 180 |
| Age 50 | 170 | 173 |
| Age 60 | 160 | 166 |

*The two formulas agree around age 40. The older formula gives a lower number for people over 40 and a higher one for people under 40.*

> **It is an estimate, not a measurement:** Two people of the same age can differ by 10 to 20 bpm in real maximum rate. Fitness level, genes, medicines and heat all play a part. If your zones feel wrong, trust how you feel and, if needed, ask a coach or doctor about a proper test.

## Step two: the five zones

Each zone is a band of percentages of your maximum. Higher zones feel harder and can be held for a shorter time.

**Zones for a 30-year-old with a maximum of 190 bpm**

| Zone | Range |
| --- | --- |
| Zone 1 · very light | 95–114 |
| Zone 2 · light | 114–133 |
| Zone 3 · moderate | 133–152 |
| Zone 4 · hard | 152–171 |
| Zone 5 · maximum | 171–190 |

*The needle sits at 140 bpm, which is in zone 3. Your own bands move with your maximum.*

Try it: [Heart Rate Zone Calculator](https://toolcloak.pages.dev/tools/heart-rate-zone-calculator). Enter your age (or a measured maximum) to get all five zones in bpm.

## What each zone feels like

**From easy to all-out**

| When | What |
| --- | --- |
| Zone 1 · 50–60% | Warm-up and recovery. Easy walking. You can chat in full sentences and sing without trouble. |
| Zone 2 · 60–70% | Base endurance. Comfortable jogging or cycling. You can still talk in full sentences. Most easy training lives here. |
| Zone 3 · 70–80% | Steady, moderate effort. Breathing is deeper. You can speak in short phrases. Useful, but easy to overdo. |
| Zone 4 · 80–90% | Hard, threshold effort. Only a few words at a time. Held for minutes, not hours. |
| Zone 5 · 90–100% | All-out intervals. You cannot talk. Held for seconds to a couple of minutes. |

A simple check is the **talk test**. If you can chat comfortably you are probably in zone 1 or 2. If you can say only short phrases you are likely in zone 3 or 4. If you cannot speak, you are in zone 5.

## Zones at other ages

Because the maximum falls with age, every zone moves down too. The table uses 220 minus age.

**Zone ranges by age (bpm, using 220 − age)**

| Age | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 |
| --- | --- | --- | --- | --- | --- |
| 20 | 100–120 | 120–140 | 140–160 | 160–180 | 180–200 |
| 30 | 95–114 | 114–133 | 133–152 | 152–171 | 171–190 |
| 40 | 90–108 | 108–126 | 126–144 | 144–162 | 162–180 |
| 50 | 85–102 | 102–119 | 119–136 | 136–153 | 153–170 |
| 60 | 80–96 | 96–112 | 112–128 | 128–144 | 144–160 |

## How to spread your week

Many coaches suggest that most training should be easy and a smaller share hard. A common guideline is about 80% easy (zones 1–2) and 20% hard (zones 4–5), with the middle zone used sparingly. It is a guideline, not a rule, and beginners often need even more easy time.

**A sample week of five hours of training**

|  | Zone 1–2 easy | Zone 3 moderate | Zone 4–5 hard |
| --- | --- | --- | --- |
| Beginner | 90% | 5 | 5 |
| Balanced plan | 80% | 5 | 15% |
| Common trap | 30% | 55% | 15% |

*The trap is making every session medium-hard. You get tired, but you never fully recover for the hard sessions or build a big easy base.*

## The “fat-burn zone” myth

Gym machines often label zone 2 as the fat-burn zone. It is true that a larger share of the calories burned come from fat at lower effort. But higher effort burns more calories per minute overall, so total fat used over a week depends far more on how much you do and what you eat than on staying in one zone.

## Practical tips

- **Measure resting heart rate in the morning.** A rate that is several beats above normal for a few days can mean you need rest.
- **Allow for heat, caffeine and sleep loss.** All can push your rate up for the same effort. Go by feel on those days.
- **Wrist trackers can lag.** On intervals they often show the number late. A chest strap is more accurate if it matters to you.
- **Sleep is part of training.** Our [sleep cycle guide](https://toolcloak.pages.dev/articles/sleep-in-90-minute-cycles-when-to-go-to-bed) helps you plan when to go to bed.
- **Stop and get help** if you feel chest pain, dizziness or unusual breathlessness.

> **Start with zone 2:** If you are new to exercise, spend several weeks mostly in zones 1 and 2. Add short zone 4 efforts once easy sessions feel easy. Check with your doctor first if you are unsure.

## Frequently asked questions

### How do I calculate my maximum heart rate?

A common estimate is 220 minus your age. Another is 208 minus 0.7 times your age. Both are averages and can be off by 10 bpm or more for one person.

### What are the five heart rate zones?

They are 50–60%, 60–70%, 70–80%, 80–90% and 90–100% of your maximum heart rate, from very light to maximum effort.

### Which zone is best for fat loss?

No single zone is best. Zone 2 uses a higher share of fat for fuel, but total calories burned over the week matter more than the zone.

### Is 220 minus age accurate?

It is a rough average. Individual maximum heart rates vary widely, so use the talk test or a supervised test if you need a precise number.

### What is a normal resting heart rate?

For most adults, a typical resting heart rate is about 60 to 100 beats a minute, and well-trained people are often lower. See a doctor if yours is unusually high or low or comes with symptoms.