Psilocybin Dosage Calculator
Strain-adjusted dose ranges by experience level. Doses are scaled to the potency of your specific strain — a 2g dose of Penis Envy is a very different experience than 2g of Golden Teacher.
Important: These dose ranges are educational guidelines based on typical strain potency — they are not medical advice and not a prescription. Individual response to psilocybin varies significantly based on body weight, metabolism, prior experience, set and setting, and batch-to-batch potency variation. Always weigh doses on a milligram-accurate scale (0.01g resolution minimum; 0.001g for high-potency strains). Start at the lower end of any range you haven't experienced before. This calculator does not account for individual factors that a licensed facilitator or physician would assess. If you are accessing psilocybin through a licensed Oregon or Colorado service center, your facilitator will determine appropriate dosing.
Understanding Potency Differences
Psilocybin content varies dramatically between strains. A "2 gram dose" means something very different depending on what strain you're working with:
| Strain | Typical Psilocybin % | Potency Tier | vs. Golden Teacher |
|---|---|---|---|
| Golden Teacher | ~0.70% | Standard | 1× |
| B+ | ~0.75% | Standard | 1.1× |
| Z-Strain | ~0.70% | Standard | 1× |
| Cambodian | ~0.70% | Standard | 1× |
| Ecuador | ~0.70% | Standard | 1× |
| Amazonian | ~1.10% | Moderate-high | 1.6× |
| McKennaii | ~1.10% | Moderate-high | 1.6× |
| Penis Envy | ~1.90% | High | 2.7× |
| Albino Penis Envy | ~2.10% | Very high | 3× |
Potency values are approximations from analytical testing aggregates. Actual potency varies between cultures, grow conditions, and individual harvests. These figures represent typical values, not guarantees.