TOOL
Ramp Calculator
Accessible ramp length & slope calculator
Height Difference
mm
Regulation Reference
🇰🇷 Korea: Max slope 1/12, landing required when rise > 0.75m
🇺🇸 ADA: Max slope 1:12, max rise 760mm (30"), landing 1,525mm
🌍 General: 1/20 is comfortable, 1/12 is minimum code