SentenceCalc

Ice and Pure Methamphetamine Sentence Calculator

“Ice” is methamphetamine hydrochloride of at least 80% purity, and it is counted at the same rate as pure (“actual”) methamphetamine: ten times the rate of an ordinary mixture. The statutory minimums for pure methamphetamine are measured by the pure drug the mixture contains. In federal court, 5 g triggers a 5-year mandatory minimum and 50 g triggers 10 years.

Verified Checked against the manual text in at least five AI-assisted review rounds. Not yet reviewed by an attorney. Guidelines Manual effective November 1, 2025Updated October 4, 2026

5-year minimum5 g21 U.S.C. §841(b)(1)(B)
10-year minimum50 g21 U.S.C. §841(b)(1)(A)
100 g, no record120 monthsLevel 30, early plea

Calculate a pure methamphetamine or “ice” case

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Amounts and sentences

AmountBase levelNo criminal history points, early pleaWith the safety valve
10 g2460 months
5-year minimum		24–30 months
100 g30120 months
10-year minimum		46–57 months
500 g34120 months
10-year minimum		70–87 months

Assumes no criminal history points, no weapon, no violence, no leadership role, an early guilty plea and the 2-level zero-point reduction.

The full quantity table

Amount (ice or pure methamphetamine)Base levelNo criminal history points, early pleaMandatory minimum
Less than 500 mg120–6 months
500 mg to 1 g146–12 months
1 g to 2 g168–14 months
2 g to 3 g1812–18 months
3 g to 4 g2018–24 months
4 g to 5 g2224–30 months
5 g to 20 g2460 months5 years
20 g to 35 g2660 months5 years
35 g to 50 g2860 months5 years
50 g to 150 g30120 months10 years
150 g to 500 g32120 months10 years
500 g to 1.5 kg34120 months10 years
1.5 kg to 4.5 kg36120–135 months10 years
4.5 kg or more38135–168 months10 years

“No criminal history points, early plea” assumes zero criminal history points, no weapon, no violence and no leadership role, so the plea reduction and the 2-level zero-point reduction both apply. The mandatory minimum column assumes no prior serious drug felony or serious violent felony; the safety valve can remove it. For ice, it also assumes the amount shown is pure methamphetamine: the statute counts only the pure drug the ice contains.

What to know

  • Because the statutory minimums count the pure drug, ice at 80% purity reaches them at a higher gross weight: 50 grams of ice may hold only 40 grams of pure methamphetamine, which carries the 5-year minimum, not 10. The guideline level uses the full weight of the ice; the calculator flags the amounts where the minimum depends on the lab's purity result.

Frequently asked questions

What amount of pure methamphetamine or “ice” triggers a federal mandatory minimum?

5 g of pure methamphetamine triggers a 5-year mandatory minimum, and 50 g triggers 10 years (21 U.S.C. §841(b)(1)), for someone without a prior serious drug felony or serious violent felony. For ice, those amounts are the pure methamphetamine it contains, so ice under 100% purity needs more gross weight: 5 g of 80% ice holds only 4 g.

What is the guideline sentence for 100 g of pure methamphetamine or “ice”?

The Drug Quantity Table puts 100 g at level 30. For someone with no criminal history points who pleads guilty, with no weapon, violence or leadership role, the guideline sentence is 120 months, driven by the 10-year minimum. With the safety valve it is 46–57 months.

Does the weight include the packaging or cutting agents?

Packaging, no. Cutting agents, yes: the weight is the entire mixture or substance containing a detectable amount of the drug, except for drugs the table measures by purity.