Convert altitude measurements between meters, feet, and kilometers easily
Result: -
Altitude influences everything — from how we breathe, to how we cook, to how a plane flies. But altitude is measured using different units depending on industry, country, and purpose:
Meters (m) — Global metric standard
Feet (ft) — Common in aviation & U.S. systems
Kilometers (km) — Large-scale geographic measurement
Miles (mi) — Used in navigation & topography
The Altitude Converter by AlllinTools allows you to instantly convert between these units with high precision — ideal for pilots, hikers, engineers, and scientists.
Altitude defines the world — measure it correctly.
Altitude affects:
✔ Air pressure
✔ Oxygen availability
✔ Weather & climate
✔ Boiling point of water
✔ Vehicle & aircraft performance
✔ Human physical endurance
✔ Environmental research
Wrong altitude data can cause:
❌ Flight navigation errors
❌ GPS misinterpretation
❌ Incorrect mapping or construction planning
❌ Health risks for hikers and mountaineers
Elevation accuracy protects lives and improves planning.
| Unit | Symbol | Used In |
|---|---|---|
| Meter | m | International science & maps |
| Foot | ft | Aviation & U.S. altitude systems |
| Kilometer | km | Geological elevation |
| Mile | mi | Travel & navigation |
The higher we go:
⬆ Altitude increases
⬇ Air pressure decreases
⬇ Oxygen availability decreases
At sea level:
21% oxygen approximately — Healthy human conditions
At 3,000 m (9,842 ft):
Oxygen drops to ~14% effective concentration
Breathing becomes harder — altitude sickness risk increases
Cooking takes longer due to lower boiling point of water
Altitude = environment + human adaptation.
| Altitude | Range | Example | Human Condition |
|---|---|---|---|
| Low altitude | 0–1,500 m | Coastal cities | Normal |
| Moderate altitude | 1,500–3,000 m | Mexico City | Mild acclimatization needed |
| High altitude | 3,000–5,500 m | Everest Base Camp | High risk of altitude sickness |
| Extreme altitude | 5,500+ m | Himalayan summits | Serious risks without oxygen |
Aircraft navigation uses feet as the standard measurement:
Aviation altitude example:
FL350 = 35,000 ft cruising altitude
Sea-level pressure isn’t constant, so aircraft use:
✈ Barometric pressure settings (QNH/QFE)
✈ RVSM rules for vertical separation in high airspace
Correct unit conversion = safe skies.
📌 Meters ↔ Feet
1 meter = 3.28084 feet
1 foot = 0.3048 meters
📌 Kilometers ↔ Miles
1 km = 0.621371 miles
1 mile = 1.60934 km
These values are implemented automatically for precision output.
🏔 Hiking & Adventure Travel — Plan elevation gains & oxygen strategy
✈ Aviation & Flight Training — Convert flight levels to terrain-safe altitude
🏗 Construction & Civil Surveying — Align elevation with foundations
🌍 GIS Mapping & Topography — Standardize global elevation datasets
☁ Meteorology — Weather pattern modeling
🎯 Sports & Athletics — High-altitude performance training
✔ Instant conversions across major height units
✔ Aviation and mountaineering friendly
✔ Continuously updated scientific accuracy
✔ Free, no download or sign-in
✔ Ideal for scientists, pilots, hikers & planners
✔ Suitable for terrain, aircraft & environmental workflows
🔐 No storage
🚫 No tracking
🛑 No personal data required
✔ Suitable for professional aviation & research use
Ascend gradually to avoid altitude sickness
Stay hydrated
Take rest days above 2,500 m
Avoid alcohol and smoking
Monitor symptoms: headache, dizziness, nausea
Your health changes with altitude — monitor wisely.
Altitude influences the environment, our bodies, and the performance of our machines. The Free Altitude Converter by AlllinTools enables adventurers, scientists, engineers, and pilots to convert elevation data accurately across every global unit.
Use this tool to:
✔ Navigate safely
✔ Plan better expeditions
✔ Support engineering calculations
✔ Communicate elevation globally
✔ Understand environmental impacts
Where the world rises — tools must rise with it.
⛰ Convert altitude easily and accurately:
✨ Altitude Converter – Only on AlllinTools.com