An egg boiling time calculator adjusts cooking time based on egg size, starting temperature, altitude, and desired doneness. The difference between a soft-set jammy yolk and a firm hard-boiled egg is often just 2-3 minutes.
Egg Settings
Large Egg Quick Reference (from fridge, sea level)
| Time | Result | Best For |
|---|---|---|
| 5–6 min | Very runny yolk | Dipping, ramen topping |
| 7–8 min | Jammy/soft-set yolk | Salads, toast, bibimbap |
| 9–10 min | Mostly set, creamy center | Deviled eggs, sandwiches |
| 12–13 min | Fully hard-boiled | Egg salad, meal prep |
How to Boil Eggs Perfectly
Perfect boiled eggs start with understanding how variables affect cooking time. Larger eggs and colder eggs take longer. High altitude means water boils at a lower temperature, so eggs take longer even though the water looks the same.
Step 1: Bring Water to a Full Boil
Use enough water to fully submerge the eggs. Bring it to a rolling boil before adding eggs. Lower eggs in gently with a spoon to avoid cracking shells.
Step 2: Time from When Eggs Enter the Water
Start your timer as soon as the eggs are in the water, not when the water returns to a boil. Lower heat to a gentle simmer once eggs are in.
Step 3: Ice Bath
Transfer eggs immediately to a bowl of ice water when the timer goes off. Let them sit for at least 5 minutes. This stops carryover cooking and makes eggs easier to peel.
FAQ
How long to boil a soft boiled egg?
For a large egg starting at room temperature: 6 minutes for jammy/soft-set yolk, 7 minutes for soft-medium. Add 1 minute if starting from the refrigerator. Lower heat and ice bath immediately after.
How long to hard boil an egg?
For large eggs from the fridge: 12-13 minutes in boiling water for fully set yolk. From room temperature: 10-11 minutes. Transfer immediately to ice water to stop cooking and make peeling easier.
Does altitude affect egg boiling time?
Yes. Water boils at lower temperatures at high altitude (195°F at 10,000 ft vs 212°F at sea level). This means eggs take longer to cook. Add about 1 minute per 1,000 feet above 3,000 feet.
Why does an ice bath matter?
An ice bath stops the cooking immediately. Without it, carryover heat continues cooking the egg and can turn a perfect soft yolk into an overcooked hard yolk. The ice bath also causes the egg to contract slightly, making peeling easier.
Is this tool free?
Yes, completely free with no account required.