How much CBD do I take?
Answer three questions. Get a starting dose, a dropper reading, and a bottle that actually fits.
Night Drops 1200
Double-strength CBN — deeper sleep
$80
20
milligrams, daily
Per dose
20mg
Frequency
1×
Timing
30–60 min before bed
per dose
0.50
mL of oil
≈ 10 drops · 20mg
1 bottle (30 mL) yields 60 doses · 60 days
Explainer
Why smaller is smarter
CBD follows a biphasic curve: too little does nothing, too much can blunt the very benefits you're seeking. The therapeutic window sits in a surprisingly narrow band — and everyone's band is different. The calculation above is a starting point, not a prescription. Feel it out for a week. Adjust in five-milligram steps. Let your body tell you when you've arrived.
Your therapeutic window
Daily milligrams
Where you land on the curve
Daily mg distribution
Your 20mg places you around the 50th percentile — right in the meaningful middle.
Your 4-week titration
Start low · go slow
What it costs you per day
Good
Night Drops 600
Better
Night Drops 1200
Best
Full Spectrum 4800
When it hits, and how hard
"Start low, go slow" is not just a saying — it is the whole discipline. Your endocannabinoid system learns your dose over two to four weeks. We recommend you let it.
This calculator provides general wellness guidance only. It is not medical advice. Consult a healthcare professional before use. Statements not evaluated by Health Canada.
1 bottle · 30-day guarantee
CBD Dosage by Weight — Reference Guide
These ranges assume a standard 30 mL tincture taken sublingually. Adjust upward slowly (5 mg increments) every week if needed. The calculator above gives a more precise number based on your age, goal, and experience level.
| Body Weight | Starting Dose | Moderate Dose | Strong Dose |
|---|---|---|---|
| Under 60 kg (132 lb) | 10–12 mg/day | 15–20 mg/day | 25–30 mg/day |
| 60–75 kg (132–165 lb) | 12–15 mg/day | 20–25 mg/day | 30–40 mg/day |
| 75–90 kg (165–198 lb) | 15–20 mg/day | 25–30 mg/day | 40–50 mg/day |
| 90–110 kg (198–242 lb) | 20–25 mg/day | 30–40 mg/day | 50–60 mg/day |
| Over 110 kg (242 lb+) | 25–30 mg/day | 40–50 mg/day | 60–80 mg/day |
CBD Dosage FAQ
How much CBD should I take?
Start at 0.25 mg per kilogram of body weight per day. For most Canadians that means 10–25 mg/day. Use the calculator above — it factors in your weight, age, and wellness goal to give you a personalised starting point.
What is the right CBD dose by weight?
A conservative starting formula: 0.25 mg/kg/day. Examples: 60 kg → 15 mg/day; 80 kg → 20 mg/day; 100 kg → 25 mg/day. Experienced users often settle at 0.5–1 mg/kg/day. The table above maps this out across common weight ranges.
How long does it take for CBD to work?
Sublingual oil (held under the tongue 60 seconds before swallowing) peaks in 15–45 minutes. Capsules and edibles peak in 1–2 hours. Consistent daily use for 2–4 weeks produces the most reliable results as your endocannabinoid system adjusts.
Full spectrum vs. CBD isolate — which should I take?
Full spectrum keeps the minor cannabinoids (CBG, CBN, CBC) and trace THC together, which amplifies effects through the entourage effect. Isolate is 99%+ pure CBD with zero THC — the right choice if you are THC-sensitive or drug tested at work. The calculator recommends the type that fits your goal.
Can I take too much CBD?
CBD is well-tolerated at high doses, but more is not always better. CBD follows a biphasic curve: at very high doses, some of the calming and anti-inflammatory effects can diminish. Start low, go slow, and find the minimum effective dose for your body.
Ready to find your product? See how Mellow oils compare by strength, cannabinoid profile, and price.
Compare CBD Oils →This calculator provides general wellness guidance only. It is not medical advice. Consult a healthcare professional before use. Statements not evaluated by Health Canada.