Brisket Smoking Calculator

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Last updated: 2026-03-10

Brisket Cook Time by Weight & Temperature

Estimated total cook times (including stall). Add 1-2 hours for rest.

Weight (lbs) 225°F 250°F 275°F 300°F
8 lbs12-16 hrs8-12 hrs6-10 hrs5-8 hrs
10 lbs15-20 hrs10-15 hrs7.5-12 hrs6-10 hrs
12 lbs18-24 hrs12-18 hrs9-15 hrs7-12 hrs
14 lbs21-28 hrs14-21 hrs10.5-17 hrs8-14 hrs
16 lbs24-32 hrs16-24 hrs12-20 hrs10-16 hrs
18 lbs27-36 hrs18-27 hrs13.5-22 hrs11-18 hrs
20 lbs30-40 hrs20-30 hrs15-25 hrs12-20 hrs

How We Calculate This

This brisket calculator uses established formulas and industry-standard data to provide accurate estimates.

  • Enter your specific values into the calculator fields above
  • Our algorithm applies the relevant formulas using your inputs
  • Results are calculated instantly in your browser — nothing is sent to a server
  • Review the detailed breakdown to understand how each factor affects your result

These calculations are estimates based on standard formulas. For critical decisions, always consult a qualified professional.

How to Convert Oven Recipes to Air Fryer

Brisket cook time depends on weight, smoker temperature, and the dreaded "stall" — a plateau around 150-170°F where the meat sweats and stalls for hours. Planning ahead is key to serving on time.

The basic rule:

  • At 225°F: estimate 1.5-2 hours per pound
  • At 250°F: estimate 1-1.5 hours per pound
  • At 275°F: estimate 45-75 minutes per pound
  • Always add 1-2 hours for rest (wrapped, in a cooler) — this is non-negotiable
  • Plan for ⅓ lb cooked brisket per person (½ lb raw weight) to account for shrinkage

Brisket loses 30-40% of its weight during cooking. A 14-lb packer yields about 8-9 lbs of sliced meat. The rest period is when collagen finishes converting to gelatin — skip it and you'll have dry brisket.

When Would You Use This Calculator?

This brisket calculator is designed for anyone who needs quick, reliable estimates without complex spreadsheets or professional consultations.

  • When you need a quick estimate before committing to a purchase or project
  • When comparing different options or scenarios side by side
  • When planning a budget and need to understand potential costs
  • When you want to verify a quote or estimate you've received from a professional
  • When teaching or learning about the concepts behind these calculations

Frequently Asked Questions

How long does a 14-lb brisket take to smoke?

At 250°F, a 14-lb full packer brisket takes approximately 14-21 hours including the stall. Add 1-2 hours for resting. Start the night before if you're serving for lunch or dinner the next day.

What is the brisket stall?

The stall occurs around 150-170°F internal temperature when evaporative cooling from the meat's surface moisture balances the heat input. It can last 2-6 hours. Wrapping in butcher paper or foil (the Texas Crutch) pushes through the stall faster.

How much brisket do I need per person?

Plan for ½ lb raw brisket per person. Brisket loses 30-40% of its weight during cooking, so ½ lb raw yields about ⅓ lb cooked meat — a generous serving. For a crowd with sides, you can get away with slightly less.

Should I wrap my brisket?

Wrapping in butcher paper or foil at 165°F internal temp speeds up cooking by 2-3 hours and helps push through the stall. Butcher paper allows some bark formation while foil (Texas Crutch) is faster but can soften the bark.

How long should brisket rest?

Rest brisket for at least 1 hour, ideally 2-4 hours. Wrap it in butcher paper, then towels, and place in a cooler (no ice). It will stay above 140°F for up to 6 hours. Resting lets juices redistribute throughout the meat.

What internal temperature is brisket done?

Brisket is done between 195-205°F internal temperature, when the probe slides in like butter. Temperature alone isn't enough — the probe test (feeling tenderness when you insert a thermometer) is the true indicator of doneness.