How do I measure small volumes accurately?

Use an oral syringe (1mL or 3mL) with 0.1mL graduations, available at pharmacies. For very small doses, consider making a more dilute solution so you're measuring larger volumes.

How long does the solution last?

Store in an amber glass bottle in the refrigerator. Alcohol solutions can last months; distilled water solutions should be used within 1-2 weeks. LSD degrades with light, heat, and oxygen exposure.

What's a typical LSD microdose?

Most people microdose between 5-20μg, with 10μg being a common starting point. The goal is sub-perceptual effects. If you notice any visual changes or feel 'high', the dose is too high.

How often should I microdose LSD?

The Fadiman protocol (1 day on, 2 days off) is most common. LSD builds tolerance quickly, so daily dosing is ineffective. Many people dose 2-3 times per week maximum.

Microdose+ Chart

LSD Microdose Calculator | Volumetric Dosing Guide

Calculate precise LSD microdoses using volumetric dosing. Convert tab strength to liquid solution for accurate microgram measurements.

LSD Microdose

Calculate precise LSD microdoses using volumetric dosing. Convert tab strength to liquid solution for accurate microgram measurements.

Tab StrengthEstimated LSD content per tab (typically 50-150μg)

μg

Number of TabsHow many tabs to dissolve

tabs

Solution VolumeTotal volume of distilled water or vodka

Target MicrodoseDesired dose per microdose (typically 5-20μg)

μg

LSD is a controlled substance in most jurisdictions. This calculator is for harm reduction and educational purposes only. Volumetric dosing provides more accurate measurements than cutting tabs. Always research local laws.

Important Disclaimer

About This Calculator

Volumetric dosing is the most accurate method for LSD microdosing. By dissolving tabs in a measured amount of liquid, you can precisely measure microgram-level doses that would be impossible to cut from a tab. This calculator helps you create and measure from a volumetric solution.

How It Works

Enter the estimated strength of your tabs, how many you'll dissolve, and the total volume of solution (distilled water or high-proof alcohol). Then specify your target microdose. The calculator tells you exactly how many milliliters to measure for each dose.

Frequently Asked Questions

Use distilled water or high-proof vodka (40%+ alcohol). Distilled water works for short-term storage (1-2 weeks refrigerated). Alcohol solutions last longer and have mild antibacterial properties. Never use tap water as chlorine degrades LSD.

Clinical Review

Dr. Igor I. Bussel, MD

Board-Certified Ophthalmologist

Dr. Igor I. Bussel is a board-certified ophthalmologist and fellowship-trained surgeon affiliated with the University of California, Irvine (UCI), the Gavin Herbert Eye Institute, and the UCI School of Medicine.

Last Updated: 2025-01-05

Sources & Guidelines

Medically Reviewed

Evidence-Based

Updated 2025-01-05

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References

Reviewed by: Harm Reduction Team (Educational Content Specialists)

Last updated: 2025-01-05