Here are the 5 hottest chilies in the world with their level of spiciness:
Bhut Jolokia (India) - 1,041,427 - 2,200,000 Scoville Units
Trinidad Scorpion (Trinidad and Tobago) - 1,200,000 - 2,000,000 Scoville Units
Carolina Reaper (United States) - 1,569,300 Scoville Units
Naga Viper (England) - 1,349,000 - 2,200,000 Scoville Units
7 Pot Douglah (Trinidad and Tobago) - 850,000 - 1,853,396 Scoville Units
Note:
The spiciness level in Scoville units is the scale used to measure the spiciness level of spicy ingredients, such as chilies. The higher the Scoville score, the spicier the chili is.