About Casinoly Slots

Casinoly Slots publishes free slot calculators for US players, each with a plain-language guide to the terms it works out. The site exists to answer three questions people ask before they play: what a bonus playthrough really costs, how long a budget lasts, and how RTP and volatility shape a session. It is independent and not operated by any casino.

What the site does

There are three tools, each with the formula on the page and a set of guides beneath it:

• The wagering requirement calculator turns bonus terms into the total you must bet, its expected cost and the time it takes, then simulates how often a balance survives the play-through.
• The session and bankroll calculator shows how many spins and how much time a bankroll buys on average, the expected loss per hour, and how widely real sessions vary.
• The RTP and volatility simulator plays the same session a thousand times on three model slots to show how far results spread around the average.

The slot terms glossary defines every term the tools use.

What the site does not do

• It lists no casino offers and ranks no casinos. There are no bonus codes, sign-up links or affiliate links on this site.
• It does not predict sessions. The calculators work out averages and simulate spreads on model games. No calculator can tell you what a real game will do next, and none can turn a slot into a winning bet.
• It does not give personal financial advice. The numbers are general math; how much you spend on entertainment is your decision.

Who writes it

Pages are researched and written by the Casinoly Slots Editorial Desk. We do not use invented author names or personas. Factual claims about rules are checked against primary sources, such as state regulations and regulators’ own pages, and those sources are linked in the text where a claim depends on them. The editorial policy explains how pages are researched, how the calculators are built and tested, and how we handle the network of sister sites we sometimes link to.

Your privacy

The calculators run in your browser. The numbers you enter are not sent to us or to anyone else, and the site sets no tracking cookies.

Gambling responsibly

Real-money online casinos are legal in only a few US states, and the minimum age is 21 in every licensing state whose rules we have checked. If gambling stops being fun, help is free and confidential: the responsible gambling page lists the national helpline and how to set limits or self-exclude.