1. Budgerigar (Common Parakeet): 5-10 years
2. Cockatiel: 15-20 years
3. Ringneck Parakeet: 25-30 years
4. Sun Parakeet: 25-30 years
5. Conure: 20-30 years, depending on the species
6. Quaker Parakeet: 20-30 years
7. Lovebird: 10-15 years
These lifespans are averages, and some parakeets may live longer or shorter depending on their individual circumstances. Proper nutrition, regular veterinary care, and a stimulating environment can contribute to a longer and healthier life for parakeets.