Most government recruitment notifications express speed in Key Depressions Per Hour (KDPH) or Words Per Minute (WPM). Understanding how these metrics relate ensures you hit your target score during timed drills.
1. KDPH to WPM Conversion Table
| Target KDPH (1 Hour) | Key Depressions in 15 Mins | Key Depressions in 10 Mins | Speed in Words Per Minute (WPM) | Exam Example |
|---|---|---|---|---|
| 8,000 KDPH | 2,000 KD | 1,333 KD | 26.67 WPM (~27 WPM) | SSC CGL DEST / DEO |
| 9,000 KDPH | 2,250 KD | 1,500 KD | 30.00 WPM | SSC CHSL Hindi LDC |
| 10,500 KDPH | 2,625 KD | 1,750 KD | 35.00 WPM | SSC CHSL English LDC |
| 12,000 KDPH | 3,000 KD | 2,000 KD | 40.00 WPM | High Court Clerk / Assistant |
| 15,000 KDPH | 3,750 KD | 2,500 KD | 50.00 WPM | SSC DEO Grade ‘A’ |
2. Gross Speed vs Net Speed Formulas
🔹 1. Gross Speed (Raw WPM)
Gross speed measures the total number of words typed per minute regardless of mistakes.
$$\text{Gross Speed (WPM)} = \frac{\text{Total Key Depressions Typed} / 5}{\text{Time Duration in Minutes}}$$
🔹 2. Net Speed (Actual Qualifying WPM)
Net speed deducts your mistake penalty from the gross speed.
$$\text{Net Speed (WPM)} = \text{Gross Speed} - \left(\frac{\text{Total Mistakes} \times \text{Penalty Factor}}{\text{Duration in Minutes}}\right)$$
🔹 3. Accuracy Percentage
$$\text{Accuracy (%)} = \left(\frac{\text{Correct Keystrokes}}{\text{Total Keystrokes Typed}}\right) \times 100$$
3. Instant Speed Calculator on TypingWire
Use our real-time KDPH and Net Speed calculator with live error analytics on TypingWire.in.