Try:
17
Syllables
13
Words
3
Lines
1.31
Per word
2.4
Reading grade

Readability: Easy — Flesch reading ease 90, about US grade 2.4 (2 sentences).

Haiku (5-7-5) check✓ Every line fits

  • Line 1 — An old silent pond5 / 5 ✓
  • Line 2 — A frog jumps into the pond7 / 7 ✓
  • Line 3 — Splash! Silence again5 / 5 ✓

Line by line — stressed syllables in bold

  • An old silent pond
    5
  • A frog jumps into the pond
    iambic trimeter
    7
  • Splash Silence again
    5

Syllables per word — main stress in bold

An~1old~1silent~2pond~1A~1frog~1jumps~1into~2the~1pond~1Splash~1Silence~2again~2

Loading the dictionary… counts shown meanwhile are estimates.

Dictionary data: CMU Pronouncing Dictionary, WordNet 3.1, SCOWL and ENABLE — sources & licenses.