Free Encryption Calculators

Key strength, hash rate, and encryption tools. Browse our free encryption tools below — all calculators are instant, accurate, and require no sign-up.

• Encryption Performance Overhead Calculator — Measure encryption performance overhead as a percentage. Compare encrypted vs plaintext throughput for AES, ChaCha20, and disk encryption.
• AES Key Size Comparison Calculator — Compare AES-128, AES-192, and AES-256 key sizes by total combinations, brute-force resistance, and estimated crack times.
• Key Length Strength Calculator — Compare equivalent security strength across AES, RSA, and ECC key sizes. Find the right key length for your security requirements.
• Hash Rate Crack Time Calculator — Estimate crack time for password hashes based on hash algorithm and hardware hash rate. Compare MD5, SHA-256, bcrypt, and Argon2 speeds.
• RSA Key Size Calculator — Determine equivalent security strength for RSA key sizes. RSA-2048 equals 112-bit, 3072 equals 128-bit, 4096 equals 152-bit security.
• SSL/TLS Overhead Calculator — Calculate SSL/TLS handshake latency overhead from RTT, TLS version round trips, and cryptographic processing. Optimize connection speed.