Does the number of eggs change the cooking time?
Not if the eggs are a similar size, fully covered by boiling water, and the pot returns to a gentle boil quickly.
EGG BOILING TIMES
How long to boil eggs: a practical timing guide
There is no single perfect time for every egg. Use a baseline, account for size and starting temperature, then make small adjustments based on the yolk texture you enjoy.
Use the interactive timer
Choose egg size, starting temperature and yolk texture for a tailored countdown with sound and screen wake lock.
Open the free egg timer →Baseline times for large eggs
For a large egg at room temperature placed into already-boiling water at sea level, start with 6 minutes for soft-boiled, 7½ minutes for medium or jammy, and 10 minutes for hard-boiled. Move the egg to ice water as soon as the time ends.
| Doneness | Time | Yolk texture |
|---|---|---|
| Soft-boiled | 6:00 | Warm and runny |
| Medium-boiled | 7:30 | Thick and creamy |
| Hard-boiled | 10:00 | Firm and sliceable |
Adjust for egg size and temperature
Smaller eggs heat through more quickly, while extra-large eggs need longer. A useful rule is to change the time by about 30 seconds per size step. Eggs taken directly from the refrigerator also benefit from about 30 extra seconds.
That means a cold extra-large egg cooked to a jammy center will usually need more time than a room-temperature medium egg. The Online Egg Timer applies these adjustments automatically.
Why altitude changes egg cooking time
At higher elevations, water boils below 212°F / 100°C. Because the water is cooler, the egg cooks more slowly. Above roughly 3,000 ft / 900 m, treat the standard chart as a starting point and add time gradually. Test one egg, then record the time that works in your kitchen.
How to check your result
The only certain way to judge yolk texture is to open an egg. If the center is less set than you want, increase the next batch by 15 to 30 seconds. If it is too firm, reduce the time by the same amount. This small, methodical adjustment is more useful than changing several variables at once.
COMMON QUESTIONS
Quick answers
Should I cover the pot?
A lid can help water return to a boil after the eggs are added, but remove or offset it if the pot threatens to boil over.
Why does my hard-boiled yolk have a green edge?
Overcooking can cause a harmless gray-green ring where sulfur and iron compounds meet. Shorten the cooking time slightly and cool the eggs promptly.