Other calculators
Network math, password entropy, and a few novelty tools.
Miscellaneous calculators on pancalc cover pet age, password entropy, RAID capacity, acoustic modes, and other specialized tools that do not fit a single academic category. Each page still follows the same editorial standard: labeled fields, documented formulas, and worked examples.
Use them when a focused tool beats a generic spreadsheet tab. Read the limitations — some outputs are illustrative rather than certified.
If you rely on a result for security or safety, cross-check with domain-specific references.
5 calculators
Acoustic Room Mode Resonance Calculator
Calculate a rectangular room-mode frequency from dimensions and axial, tangential, or oblique indices. Use the calculator above. Free browser tool.
Bcrypt & Argon2 Hashing Cost Estimator
Compare relative bcrypt and Argon2 password-hashing work factors and estimate bcrypt latency scaling. Use the calculator above. Free browser tool.
Dog Age in Human Years Calculator
Estimate a dog’s approximate human-equivalent age using a logarithmic model with examples and breed-aware limitations. Free browser tool.
Password Entropy Calculator
Estimate theoretical password entropy bits from password length and character-set size, with examples and security limitations. Free browser tool.
RAID Storage Capacity Calculator
Estimate usable capacity and tolerated drive failures for RAID 0, 1, 5, 6, and 10. Use the calculator above. Free browser tool. Free browser tool.