Tachylex

tachy- swift  ·  -lex word

Measure your reading velocity.

Tachylex measures your reading rate in words per minute across several original passages, then checks comprehension the way a reading assessment does. You get your reading rate, your comprehension, and your effective rate (rate adjusted for understanding), scored against age and skill norms.

Test length
  • 1 Read each passage once, at your natural pace — for understanding, not just speed.
  • 2 The clock stops the moment you mark it read.
  • 3 Answer a few questions from memory — no peeking back.
  • 4 Get your scored report against the norms & print it.

Passage 1 of 3

Marine science

The Deep That Glows

When you press Start reading the passage appears and the timer begins. Read it once, the way you normally would, then mark it read. You'll answer a few questions afterward, so read for understanding.

— words • Read naturally, don’t skim
Passage 1 of 3
0.0s

Stop the clock the instant you reach the end.

Passage 1 of 3 Comprehension check

The passage is hidden now. Answer from memory — your honesty makes the score real.

Tachylex Reading Speed Report

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Age — · 3 passages · —

0 words per minute —

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Comprehension —% questions answered correctly
Effective rate — wpm reading rate × comprehension
Material read — words —

For your age

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Where you stand

Your reading rate against typical rates for different groups, from published reading-rate figures for general prose.

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How rates vary across readers

Education level

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Age trend

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Speed readers

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Passage by passage

Passage Words Time Rate (wpm) Comp. Effective
Overall — — — — —

What this means

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    Method: reading rate is total words read ÷ total reading time; comprehension is total questions correct ÷ total asked; effective rate is rate × comprehension. Norms reflect widely-cited figures for adult silent reading of general prose (the average adult reads roughly 200–250 wpm; ~300 wpm is typical of strong college-level readers). A rate is treated as valid only when comprehension holds at 70% or above — the common floor in reading-rate research, since speed without understanding isn’t reading. Passages are original fiction, deliberately controlled at an easy, consistent reading level (about a 5th-grade level) so the test measures speed, not vocabulary — and being invented, they can’t be answered from prior knowledge.

    Saved on this device

    Tachylex keeps your past attempts in this browser only — no account, no server, nothing leaves your device.

    No attempts saved yet. Take a test to see your trend here.