Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Chess Time Control Equivalency Calculator

Calculates the effective total game duration in minutes for any chess time control given base time, increment, and move count. Use it to compare time pressure across different formats like Blitz, Rapid, or Classical.

Base Time (minutes)

Increment (seconds)

Average Moves Per Game (moves)

Time Usage Rate

Fill in the required fields to see your result.

Chess

Chess Rating Gain Projection Calculator

Projects your ELO rating after a chosen period based on win rate, games played per month, and K-factor. Ideal for setting realistic improvement goals over weeks or months.

Current Rating (ELO)

Win Rate (%)

Games Per Month (games)

Time Period (months)

Average K-Factor

Fill in the required fields to see your result.

Key differences

	Chess Time Control Equivalency Calculator	Chess Rating Gain Projection Calculator
Category	Chess	Chess
Inputs required	4	5
Result	Effective Game Duration (minutes)	Projected Rating (ELO)
What it does	Calculates the effective total game duration in minutes for any chess time control given base time, increment, and move count. Use it to compare time pressure across different formats like Blitz, Rapid, or Classical.	Projects your ELO rating after a chosen period based on win rate, games played per month, and K-factor. Ideal for setting realistic improvement goals over weeks or months.