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Redmoon Calculators
Writing, making, worldbuilding

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Guides to the math behind the tools — readability formulas, pricing your work, sizing a build, and planning a game world.

RSS feed 130 articles · page 7 of 7
· 8 min read

The real odds of pulling that chase card (and why the box let you down)

How booster-pack pull rates actually work, why "1 in 200" doesn't mean 200 packs, and the probability every card collector and game designer should understand.

#tcg#probability#game-design#collecting
· 8 min read

From word count to finished draft: planning a novel you will actually finish

Genre word-count targets, how manuscript words turn into print pages, and the daily-target math that makes a deadline realistic instead of aspirational.

#writing#novel#nanowrimo#planning
· 7 min read

Syncing delay and reverb to your tempo: the BPM-to-milliseconds guide

Why time-based effects sound better locked to the beat, the one formula that converts BPM to milliseconds, and how to use note divisions, dotted, and triplet times in a mix.

#music-production#audio#mixing#bpm
· 9 min read

How to price a 3D print: the costs every maker forgets

A full breakdown of what a 3D print actually costs to produce — filament, power, machine wear, failed prints, and labor — and how to turn that into a price that earns a profit.

#3d-printing#maker#pricing#etsy
· 6 min read

How reading time is calculated (and why every blog uses a different number)

The formulas behind "X minute read" labels, the wide range of WPM assumptions, and how to pick a number that matches your audience.

#reading-time#wpm#ux
· 9 min read

Dice pool probability for tabletop games: why the average roll lies to you

How dice pools really behave — bell curves vs. flat d20s, what advantage actually does to your odds, exploding dice, and how to set fair target numbers.

#ttrpg#dice#probability#game-design
· 10 min read

Every readability formula explained, briefly

A reference guide to 12 readability formulas — how each works, where it came from, its strengths and limits, and when to reach for it instead of the alternatives.

#readability#reference#formulas
· 7 min read

What is a good Flesch Reading Ease score? (with concrete examples)

A grounded answer with score bands, real examples from journalism and fiction, and what scores to target for blogs, marketing, technical docs, and academic writing.

#flesch#targets#examples
· 8 min read

How to lower your readability score: a practical editing playbook

Concrete techniques to bring a Flesch–Kincaid or Gunning Fog score down by 2–4 grade levels without losing accuracy or sounding patronising.

#readability#editing#how-to
· 9 min read

Flesch vs Gunning Fog vs SMOG: which readability formula should you use?

Three popular readability formulas, side by side. When each is the right tool, what they get wrong, and how to read disagreements between them.

#readability#comparison#flesch#gunning-fog

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