Ratio Calculator
Simplify ratios, find missing values in proportions, and calculate aspect ratios. Perfect for students and designers.
Ratio Calculator
Simplify ratios, find missing values, calculate aspect ratios
Ratio Result
About Ratio Calculator
Simplify ratios, find missing values in proportions, and calculate aspect ratios. Perfect for students, designers, and anyone working with proportions.
Common Ratio Examples
| Ratio | Use Case | Equivalent Ratios |
|---|---|---|
| 2:3 | Common for photography | 4:6, 6:9, 8:12 |
| 16:9 | Widescreen TV/Monitor | 32:18, 48:27, 64:36 |
| 4:3 | Standard TV/Old monitor | 8:6, 12:9, 16:12 |
| 1:1 | Square (Instagram) | 2:2, 3:3, 4:4 |
Frequently Asked Questions
Find the greatest common divisor (GCD) of both numbers and divide both by it. Example: 12:18 → GCD is 6 → 12÷6 = 2, 18÷6 = 3 → Simplified ratio = 2:3. Our calculator does this automatically for any ratio.
Find the GCD of all three numbers, then divide each by the GCD. Example: 6:9:12 → GCD is 3 → 6÷3=2, 9÷3=3, 12÷3=4 → Simplified ratio = 2:3:4.
Use cross multiplication. If a:b = c:x, then x = (b × c) ÷ a. Example: 2:3 = 4:x → x = (3 × 4) ÷ 2 = 6. Our calculator helps you find missing values in proportions.
Aspect ratio is the proportional relationship between width and height. Common ratios: 16:9 (widescreen), 4:3 (standard), 1:1 (square). Used for screens, images, and videos.
About the Ratio Calculator
Simplify ratios, find missing values in proportions, and calculate aspect ratios. Perfect for students and designers.
Formula
Reference Table
| Category | Value |
|---|---|
| 2:3 | 4:6, 6:9, 8:12 |
| 16:9 | 32:18, 48:27 |
| 4:3 | 8:6, 12:9 |
| 1:1 | 2:2, 3:3 |