Rf Value Calculator
Visualize the chromatogram and get ideal-range feedback.
Why ideal Rf? 0.3–0.8 is best for separating spots—too low: stuck, too high: runs with solvent.
Example Rf values:
| Compound | Rf (TLC, silica) |
|---|---|
| Aspirin | 0.66 |
| Paracetamol | 0.52 |
| Caffeine | 0.29 |
| Sulfanilamide | 0.85 |
Rf Value Calculator – Thin Layer Chromatography (TLC)
Welcome to the Rf (Retention Factor) Value Calculator, a specialized tool designed for B. Pharm students, researchers, and analytical chemists working with Thin Layer Chromatography. This tool helps you calculate the Rf value of any compound and visually understand how far it traveled on a TLC plate.
How to Use the Calculator
🔹 Step 1: Input Values
Distance moved by compound
Distance moved by solvent front
Units: Choose from mm or cm
🔹 Step 2: Click Calculate
Instantly compute the Rf value
Visualize the TLC plate with compound spot and solvent front
Output & Features
Accurate Rf Value
Automatically calculated to 3 decimal places
Formula shown with your substituted values
🖼 TLC Visualization
Graphical plate view with:
Baseline
Compound spot
Solvent front
Responsive, auto-resizing chart
Educational Interpretation
Ideal Rf Range: 0.3 to 0.7 (highlighted in green)
Poor Rf Range: Below 0.2 or above 0.8 (highlighted in red/yellow)
Text-based summary of result interpretation
Educational Interpretation
Ideal Rf Range: 0.3 to 0.7 (highlighted in green)
Poor Rf Range: Below 0.2 or above 0.8 (highlighted in red/yellow)
Text-based summary of result interpretation
