Egg Boiling Time Chart Guide

You want one number: how many minutes for a soft yolk, and how many for a fully set one. Every other source gives you a range. This egg boiling time chart gives you specific minutes that work for large eggs dropped into boiling water at sea level, straight from the fridge. Use it as a printable reference.

For a large cold egg, from boiling water at sea level:

The chart above is for a large egg. The word "large" means different weights depending on where you live. If you use a different size, you need to adjust the time.

USDA and UK Size Standards

USDA egg size grades are based on net weight per dozen: Jumbo (30 oz/dozen), Extra Large (27 oz/dozen), Large (24 oz/dozen), Medium (21 oz/dozen), Small (18 oz/dozen), Peewee (15 oz/dozen). The USDA Agricultural Marketing Service publishes these standards. UK/EU egg size classes, published by the British Egg Information Service, are per egg: Very Large (73 g+), Large (63-73 g), Medium (53-63 g), Small (under 53 g).

Time Adjustments for Different Sizes

A US large egg and a UK medium egg both weigh about 50-53 g. Use the chart for those. For a US jumbo egg (about 71 g), add 45 seconds to the chart time. For a UK very large egg (73 g+), add 45 seconds. For a US small egg (about 43 g), subtract 30 seconds. For a US peewee egg (about 36 g), subtract 60 seconds.

The chart assumes a cold egg straight from the refrigerator (about 40°F / 4°C). If your eggs have sat out and reached room temperature (about 68°F / 20°C), they cook faster. Subtract 60 seconds from the chart time for room-temperature eggs.

Why sixty seconds? The site calculator's preset values use a 60-second adjustment for cold vs room-temperature eggs. Serious Eats tests confirm that a cold egg needs that extra time to reach the same internal temperature. If you forget to take eggs out of the fridge early, just use the chart as-is. The difference between a runny yolk and a jammy yolk is about 30 seconds, so the cold-start adjustment is the difference between success and overcooking.

Boiling one egg and boiling a dozen are not the same. When you drop twelve cold eggs into boiling water, the water temperature drops significantly. It takes time for the burner to bring it back to a boil. That delay adds to the cooking time.

For a dozen large cold eggs in a standard 4-quart pot, add 60 seconds to the chart time. Use a larger pot (6 quarts or more) and the drop is less severe; add 30 seconds. The American Egg Board method (cold start, covered pot, stand time) handles this differently, but for a boiling-start method the batch size matters. If you are boiling more than six eggs, always add time for the temperature recovery.

Some sources say cold start is always wrong. It is not wrong; it is just less precise. If you place eggs in cold water and bring everything to a boil together, the eggs cook as the water heats. The total time from cold water to done is longer and harder to predict because your stove's power and pot size change the ramp-up time.

The American Egg Board publishes a cold-start method: place eggs in a single layer, cover with cold water one inch above the eggs, bring to a rolling boil, remove from heat, cover, and let stand for 12 minutes for large eggs. That works, but the result is a hard-cooked egg. For soft or medium doneness, cold start is unreliable because the yolk cooks during the ramp. Stick with the boiling-start method for repeatable results. If you must use cold start, add 2-3 minutes to the chart times and accept wider variation.

Your stove is not the same as the one used in the Serious Eats tests. Your burner wattage, pot thickness, and altitude all differ. Run one test to calibrate your own egg boiling time chart.

Run a Calibration Test

What to do: Use a large cold egg, boiling-water start, at your kitchen's altitude. Cook one egg for 6 minutes. Cut it open. If the yolk is runny, your stove matches the chart. If the white is still translucent, your water took longer to return to a boil; add 15 seconds next time. If the yolk is jammy at 6 minutes, subtract 15 seconds. Write down your adjusted time. That number is now your personal baseline for that egg size and doneness. Reuse it forever.

The failure case: Most people skip this test, use a generic chart, and blame the recipe when the egg comes out wrong. One 15-minute test fixes that for every egg you cook afterward.

At higher altitudes, water boils at a lower temperature. At sea level it is 212°F / 100°C.Eggs cook more slowly in cooler water.

Apply the 30-Second Rule

The site calculator uses an adjustment of +30 seconds per 1,000 feet above sea level. Colorado State University Extension says to add 1-2 minutes at 5,000 feet for hard-cooked eggs. The USDA FSIS High Altitude Cooking fact sheet says the same. Those numbers agree: 1 minute at 5,000 feet is 12 seconds per 1,000 feet. Add 30 seconds per 1,000 feet to the chart time.

For 3,000 feet, add 90 seconds. For 7,000 feet, add 3.5 minutes. This is not a precise formula; it is a starting point. Test once (see the section above) and adjust. The NIST reference on boiling point vs pressure confirms the physics, but your pot and stove introduce variation.

Home cooks who want a single, sourced reference for soft, medium, and hard-cooked eggs should bookmark this chart. People at altitude who have been burned by generic sea-level times will find the adjustment here. Meal preppers boiling a dozen eggs for the week need the batch-size advice. Anyone confused by contradictory advice online, 30 seconds vs 45 seconds vs 60 seconds for cold eggs, gets one consistent set of numbers here.

Professional chefs who already have a calibrated method do not need this. Anyone looking for sous-vide or pressure-cooker egg times should go to a dedicated resource. If you want a physical timer gadget, this is not that. The single thing that most often goes wrong is trusting a one-size-fits-all chart from a generic source without adjusting for egg size, starting temperature, or altitude. This chart fixes that because it names each assumption and tells you how to change it.