⚖ THC:CBD Ratio Calculator
Find your ideal THC to CBD ratio for pain, anxiety, sleep, inflammation, and more
Calculate Your Ideal Ratio
Select a condition for suggested ratios or choose "Custom Ratio" to enter your own
Product 1
Total combined THC + CBD in milligrams per dose
Your THC:CBD Ratio Results
About This Ratio
Product Analysis
Blend Instructions
Suggested Dose Schedule
⚠️ Medical Disclaimer
This calculator is for educational purposes only. Always consult with a healthcare provider before using cannabis for medical purposes. Cannabis affects everyone differently, and individual responses to specific ratios may vary.
THE MORE YOU KNOW: THC:CBD Ratios
What Do Ratios Mean?
A THC:CBD ratio describes the relative proportion of THC (tetrahydrocannabinol) to CBD (cannabidiol) in a cannabis product or dose. For example, a 1:2 THC:CBD ratio means there is one part THC for every two parts CBD. A product with 5mg THC and 10mg CBD has a 1:2 ratio. Ratios help you predict the type of experience and therapeutic effects you can expect.
How THC and CBD Interact: The Entourage Effect
THC and CBD work together through a phenomenon called the "entourage effect." CBD modulates THC's psychoactive effects by acting as a negative allosteric modulator of the CB1 receptor. In practical terms, this means CBD can reduce the anxiety, paranoia, and impairment sometimes caused by THC while preserving its pain-relieving, anti-inflammatory, and mood-elevating properties. This synergy is why whole-plant products with balanced ratios are often more effective than isolated cannabinoids.
Common Therapeutic Ratios
High THC (e.g., 10:1 THC:CBD): strong psychoactive effects, used for appetite stimulation, nausea, and severe pain. Balanced (1:1): equal parts THC and CBD, widely used for pain, inflammation, and mood disorders with moderate psychoactivity. CBD-dominant (1:2 to 1:4): mild or no psychoactive effects, preferred for anxiety, inflammation, and daytime use. High CBD (1:10 to 1:20+): minimal THC effects, used for seizure disorders, pediatric conditions, and those who want to avoid any "high."
Why Ratios Matter for Medical Users
Medical cannabis patients benefit from consistent, predictable dosing. The right ratio can mean the difference between effective symptom relief and unwanted side effects. By understanding and targeting specific ratios, patients can fine-tune their cannabis use to maximize therapeutic benefits while minimizing psychoactive effects. This is especially important for conditions like epilepsy, chronic pain, and anxiety disorders where precise dosing is critical.
HOW TO USE THIS Calculator
- Select your goal or condition from the dropdown to get a suggested THC:CBD ratio, or choose "Custom Ratio" to enter your own
- Enter the THC and CBD percentages for your primary cannabis product (check the product label or lab results)
- Optionally, toggle on a second product to calculate a blend that achieves your target ratio
- Enter your desired total dose in milligrams (start with 5-10mg if unsure)
- Click "Calculate Ratio" to see your results, blend instructions, and dosing guidance
CALC'S FAQ HOTLINE
What does a THC:CBD ratio mean?
A THC:CBD ratio describes the relative amounts of THC and CBD in a cannabis product. For example, a 1:2 ratio means there is one part THC for every two parts CBD. Higher CBD ratios tend to reduce psychoactive effects while providing therapeutic benefits like anti-inflammation and anxiety relief.
What is the best THC:CBD ratio for pain?
Research suggests a 1:1 THC:CBD ratio is most effective for pain management. This balanced ratio provides the analgesic benefits of both cannabinoids while the CBD helps moderate THC's psychoactive effects. Some patients prefer higher CBD ratios like 1:2 or 1:3 for daytime pain management.
What is the entourage effect?
The entourage effect is the theory that cannabis compounds work better together than in isolation. THC and CBD interact synergistically: CBD can modulate THC's effects, reducing anxiety and paranoia while enhancing therapeutic benefits. Other cannabinoids like CBG, CBN, and terpenes also contribute to this synergy, which is why whole-plant products are often preferred.
Can I mix two products to achieve a specific ratio?
Yes! Blending products is a common strategy. For example, you can mix a high-THC flower with CBD flower, or add a CBD tincture to a THC edible. This calculator determines the exact proportions of each product you need to achieve your target ratio.
Should I consult a doctor before using medical cannabis?
Absolutely. This calculator is for educational purposes only. Always consult a qualified healthcare provider before using cannabis for medical conditions, especially if you are taking other medications, are pregnant, or have underlying health conditions. A knowledgeable physician can help you find the right ratio and dosage for your specific needs.
How do I know which ratio is right for me?
Start with the suggested ratios for your condition and adjust based on your response. Begin with a low dose and increase gradually. Keep a journal to track which ratios and doses provide the best results. Everyone's endocannabinoid system is different, so finding your ideal ratio may require some experimentation under professional guidance.