Edible Onset & Duration Calculator
When effects may start, peak, and fade — not how many milligrams are in a serving. For dose math, use the edible calculator.
Gray = wait · Light green = coming on · Dark green = peak · Pale green = taper
Windows are typical ranges used in consumer education, not a medical forecast. Individual timing varies. For milligrams per serving, use the edible calculator. For homemade gummies, use the gummy dosage calculator.
What this tool does (and does not)
This page answers “when might it start?” and “how long might it last?” It does not calculate THC milligrams, cannabutter ratios, or how much flower you need. Those jobs stay on the existing edible, infusion, and gummy pages so Google is not asked to pick between two dosage tools.
Swallowed edibles go through digestion and the liver (11-hydroxy-THC). That is why they start later and last longer than smoking. Sublingual tinctures and some nano drinks skip part of that path, so their onset window is shorter.
“How long do edibles last?” can also mean shelf life. This calculator is about the effects window. Store homemade goods according to the food, not the cannabinoids — cookies and butter still spoil.
FAQ
How long should I wait before taking more?
For swallowed edibles, wait at least 2 hours — longer if you ate a full meal. Redosing at 45 minutes is the usual way people stack two doses into one peak.
Do drinks always hit faster?
Only if they are formulated for faster absorption (nano-emulsions) or you hold a tincture under the tongue. A regular infused tea that you swallow still follows the slower edible path.
Where do I calculate the actual dose?
Flower, butter, oil, tincture batch math → edible calculator. Drops per ml → tincture dose calculator. Leftover vaped material → AVB calculator.