Plan a session by potency
Dosing Calculator
Estimate the dry herb you need for a target THC dose, with vaporizer-vs-smoking efficiency adjustments and tolerance presets.
Four free, in-browser calculators for dosing, temperature, strain blending, and session cost. No sign-up, no tracking, results in seconds.
A quick reference for the dry herb vaping range. Each calculator below ties back to part of this map.
THC
157°C
CBN
185°C
COMBUST
230°C
CBD
160°C
CBC
220°C
Plan a session by potency
Estimate the dry herb you need for a target THC dose, with vaporizer-vs-smoking efficiency adjustments and tolerance presets.
See what activates at each temp
Find the temperature where each cannabinoid (THC, CBD, CBG, CBN) and major terpene vaporizes. °C/°F switching with effect-based session presets.
Hit a target THC:CBD ratio
Mix two strains by their THC and CBD percentages to reach a target ratio for daytime, evening, microdosing, or balanced sessions.
See the real price of a bowl
Plug in price-per-gram, bowl size, and sessions per day to see true cost per hit, per session, per month, and per year.
Match the goal closest to what you are trying to figure out.
How these calculators work and what they are for.
No. All four calculators are free, run directly in your browser, and require no account, email, or paid tier.
No. Every tool here is for educational and planning use only. Estimates are based on published cannabinoid and terpene data and approximate vaporizer efficiency, not personalized medical guidance.
If you are new to dry herb vaping, start with the Vaporization Temperature Guide to understand which compounds activate at which temperatures. The Dosing and Cost Per Session calculators then help you plan real sessions and budget.
Combustion happens above roughly 230°C / 446°F. Most cannabinoids and terpenes evaporate well below that, which is why a dry herb vaporizer can extract them efficiently between about 160°C and 220°C without burning the flower.