To turn KDPH into WPM, divide by 300; to turn WPM into KDPH, multiply by 300. That works because one word is 5 key depressions and an hour has 60 minutes, and 5 × 60 = 300.
KDPH means key depressions per hour. SSC states data entry speeds in it, while typist posts usually use words per minute, so the two units meet in the same notice.
Conversion table
| WPM | KDPH | Key depressions in 10 min | Key depressions in 15 min |
|---|---|---|---|
| 20 | 6000 | 1000 | 1500 |
| 25 | 7500 | 1250 | 1875 |
| 30 | 9000 | 1500 | 2250 |
| 35 | 10500 | 1750 | 2625 |
| 40 | 12000 | 2000 | 3000 |
| 45 | 13500 | 2250 | 3375 |
| 50 | 15000 | 2500 | 3750 |
For any other time, key depressions = KDPH × minutes ÷ 60.
Exam requirements in both units
- SSC CHSL LDC/JSA (2026 notice): English 35 WPM, which the notice puts at about 10500 KDPH, or Hindi 30 WPM, about 9000 KDPH, in 10 minutes.
- SSC CHSL DEO, other departments (2026): 8000 KDPH, which is about 26.67 WPM. In 15 minutes that is 2000 key depressions, and the passage has 2000 to 2200.
- SSC CHSL DEO, C&AG and Para 8.1 departments (2026): 15000 KDPH, which is 50 WPM. In 15 minutes that is 3750 key depressions, and the passage has 3700 to 4000.
- SSC CGL DEST (2026 notice): 2000 key depressions in 15 minutes, about 8000 KDPH.
- DSSSB LDC / Junior Assistant (2026): 35 WPM English or 30 WPM Hindi; the advertisement itself equates these to 10500 and 9000 KDPH at 5 key depressions per word.
Where the conversion does not fit
Some exams do not count key depressions at all. CPCT (2026) counts correct words typed, BSSC LDC (2026) counts actual words, and RSSB Clerk Grade-II (2026) gives marks per correct word. For these, a WPM to KDPH figure is only a rough guide; train against the rule in your own notice.
Also remember that most speed figures are worked out on your final text. Keys you pressed and deleted do not count, so a high raw typing rate with lots of corrections can still fall short.
How to use the table
- Find your exam's requirement, in WPM or KDPH.
- Read across to the key depressions for your test time. That is the minimum your final text must contain.
- In practice, aim a little above it so that one bad minute on the day does not sink you.
For example, a DEO aspirant for other departments needs 2000 key depressions in 15 minutes. If you regularly reach 2250 in practice, which is 30 WPM, you have a cushion for nerves, an unfamiliar keyboard or a passage full of figures.
What to do next
Use the WPM to KDPH converter for any figure not in the table. Then test yourself in the SSC CHSL typing test, which has both the LDC/JSA and DEO versions.