Altitude Acclimatization Schedule Calculator
Fill in the values and the answer updates as you type.
How the Altitude Acclimatization Schedule Calculator works
Common high-altitude guidance is to raise your sleeping elevation by no more than about 500 m per day above 3,000 m, and to take a rest day roughly every 1,000 m gained. Climbing days = gain above 3,000 m ÷ daily limit, rounded up. Rest days = completed rest intervals before the target. Below 3,000 m the pace is not limited. This is a general planning guide, not medical advice. Go slower, or descend, if you develop symptoms of altitude sickness. Example: with Starting sleeping elevation 2500 m, Target sleeping elevation 5000 m, and Maximum sleeping gain per day above 3,000 m 500 m, the result is Minimum days above 3,000 m = 5; Climbing days = 4; Rest days = 1.
Inputs and results
The Altitude Acclimatization Schedule Calculator takes 4 inputs and gives 4 results.
What you enter
- Starting sleeping elevation (m) — starts at 2500.
- Target sleeping elevation (m) — starts at 5000.
- Maximum sleeping gain per day above 3,000 m (m) — starts at 500.
- Rest day after every (m gained) — starts at 1000.
What you get
- Minimum days above 3,000 m
- Climbing days
- Rest days
- Gain above 3,000 m (m)
Example: Altitude Acclimatization Schedule Calculator with the starting values
With starting sleeping elevation 2500 m, target sleeping elevation 5000 m, maximum sleeping gain per day above 3,000 m 500 m and rest day after every 1000 m gained, the calculator returns:
| Minimum days above 3,000 m | 5 |
|---|---|
| Climbing days | 4 |
| Rest days | 1 |
| Gain above 3,000 m (m) | 2,000 |
Change any value above and the results update straight away.
Altitude Acclimatization Schedule Calculator FAQ
How do I use the Altitude Acclimatization Schedule Calculator?
Enter starting sleeping elevation, target sleeping elevation, maximum sleeping gain per day above 3,000 m and rest day after every in the fields, then read minimum days above 3,000 m, climbing days, rest days and gain above 3,000 m (m) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Altitude Acclimatization Schedule Calculator calculate?
Days needed to climb to a high camp at a safe sleeping-altitude pace. It returns minimum days above 3,000 m, climbing days, rest days and gain above 3,000 m (m) from the 4 values you provide.
What values does the Altitude Acclimatization Schedule Calculator start with?
It opens with starting sleeping elevation 2500 m, target sleeping elevation 5000 m, maximum sleeping gain per day above 3,000 m 500 m and rest day after every 1000 m gained so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Altitude Acclimatization Schedule Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Altitude Acclimatization Schedule Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.