Ascending too quickly doesn't give your body time to adjust to thinner air. Our risk formula is a simplified approximation: , where is elevation in meters, is ascent rate, and is fitness level. Higher scores indicate greater risk.
If your score approaches 5 or more, consider adding acclimatization days, hydrating frequently, and monitoring for symptoms such as headache, nausea, or dizziness. Everyone reacts differently to altitude, so listen to your body and descend if symptoms become severe.
The calculator now lets you include planned rest days. Each acclimatization day reduces your risk slightly, reflecting how spending extra time at altitude helps your body adjust to lower oxygen levels.
Calculate the sun's current azimuth and elevation for any location and time. Useful for solar panel setup, photography, and astronomy.
Determine how much fabric you need for a sewing pattern. Input piece dimensions, fabric width, and seam allowances to calculate yardage.
Calculate how many footcandles a space receives or how many lumens you need for proper lighting based on room size.