How Much Charcoal to Use (By Grill Size)

“Enough charcoal” is the vaguest instruction in grilling, and it is the reason two cooks on the same kettle get completely different results. The good news is that the biggest charcoal maker publishes real numbers, and it measures them in chimney-fulls, which is the only unit that is actually easy to use: fill the chimney to the line you want, light it, pour it in.

Everything below is Kingsford’s own chart, which is built around a standard charcoal chimney it states holds about 100 briquettes. Nothing here is our estimate.

Kingsford’s quantities, by grill size

Kingsford also publishes a planning figure worth remembering when you are buying rather than cooking: about four pounds of charcoal per grilling session on a standard kettle. A 16 lb bag is therefore roughly four cookouts, which is the number to do your shopping with.

How to read the chart without a scale

Nobody weighs charcoal. Use the chimney as the measure and mark it mentally in quarters — a full chimney, three-quarters, half. Fill to the line, light it with a cube or a sheet of newspaper underneath, and wait until the coals at the top are ashed over gray. That is one load, every time, which is what makes a cook repeatable.

The one case where you count individual briquettes is the snake method, because the arrangement matters more than the quantity: Kingsford’s version is about 100 unlit briquettes laid in two rows around the edge of the grill, started with just 6 to 8 lit coals at one end. The fire then creeps along the snake for hours at 225–250°F.

Three things that change the number

Cold and wind. Both pull heat out of the grill, so a winter cook wants more fuel than the chart says and a longer preheat. Our cold-weather guide has the detail.

Lump versus briquettes. Lump charcoal is irregular, so a chimney-full weighs differently and burns hotter and faster. Kingsford’s chart is written for briquettes; lump vs briquettes explains what changes when you switch.

How long the cook is. Charcoal burns out. For anything over about an hour, plan to add unlit coals round the edge of the lit ones, or light a second small chimney while the first is cooking.

The mistake that wastes most charcoal

Lighting a full chimney for a weeknight dinner. Two chicken breasts do not need 100 briquettes, and the extra fuel does not vanish — it burns out on your patio while you eat. Match the load to the food, close both vents when you are done to smother what is left, and reuse it next time. On a small grill, a full-size chimney is the wrong tool altogether: it lights more coals than the grill can hold.

What to look for in the gear

Measuring charcoal properly needs three things, and the criteria are easy to state. A chimney sized to the grill, so a full load is the right load rather than an overflowing one. A briquette that behaves the same way twice, which is the whole argument for uniform briquettes over lump while you are learning. And a starter that lights the bottom of the chimney without lighter fluid, because fluid flavors the food and adds nothing a paraffin cube does not do better.

Once the load is right, the airflow is the other half of the job: charcoal grill vents explained covers which vent to move and which way. For the lighting routine itself, see how to light a charcoal grill.