Cryptography & Security Calculators
Audit cryptographic parameters. Analyze security bit lengths, dissect hash function characteristics, calculate password entropy limits, estimate CA validity intervals, and encode byte streams.
Key Length Equivalence
Compare security levels (bits of security) across symmetric keys, RSA, and Elliptic Curve Cryptography (ECC) based on NIST standards.
NIST Cryptographic Strengths
"Bits of Security" measures the log base 2 number of operations required to crack a key via the best known cryptanalytic attack. As computing power grows, NIST periodically deprecates legacy sizes (like RSA-1024) to protect long-term encrypted secrets.
Security Parameter Audit
Audit VerifiedExplore Additional Utilities
Pediatric Dosing Calculator
Estimate pediatric dosages from adult recommendations using standard pediatric clinical rules: Clark's, Young's, Webster's, Fried's, and BSA methods.
URL Slug Generator
Generate clean, hyphenated, SEO-friendly slugs from any string with custom separators.
Spring rate — lb/in ↔ N/mm — suspension setup
Convert suspension coil spring stiffness between lb/in and N/mm. Estimate coil spring rates using wire diameter, coil diameter, and active counts.
Hyperfocal Distance Calculator
Calculate hyperfocal distance, near sharp limit, and depth of field range starting point for any focal length, aperture, and sensor format.
Chisel bevel angle — degrees ↔ sharpening guide setting
Calculate chisel bevel angles and determine the exact projection distance needed for hone sharpening guides.
No Claim Discount (NCD)
Track and project No Claim Discount percentages, claim-free year scales, and calculate potential premium savings with claim step-backs.
APR ↔ APY Yield Converter
Convert interest rates between Annual Percentage Rate (APR) and Annual Percentage Yield (APY).
Hebrew ↔ Gregorian Calendar
Convert between the Hebrew lunisolar calendar and standard Gregorian dates, detailing standard Jewish months, holidays, and leap years.
Engine displacement — cc ↔ cubic inches ↔ liters
Convert and calculate total engine volume in cc, cubic inches, and liters using cylinder bore, piston stroke, and cylinder count.
NATO Phonetic Alphabet
Spell out commands or names phonetically using the standard military/aviation phonetic alphabet.
Scientific Temperature Scale
Convert scientific scales between Celsius, Fahrenheit, Kelvin, and Rankine thermal indicators.
Pregnancy Due Date & Milestones
Calculate estimated due date (EDD), gestational age, fetal development sizes, and trimester milestones.
JSON Formatter
Format, validate, beautify, and minify your JSON data structures in real-time.
Braille Translator (Grade 1)
Convert standard text into visual Grade 1 Braille cell dots, and design custom cells using an interactive 6-dot braille builder.
US Inflation Adjuster
Evaluate historical purchasing power changes in the United States using official CPI records.
CPU clock cycles ↔ instructions per second
Translate CPU frequencies, core counts, and performance CPI/IPC values into Millions of Instructions Per Second (MIPS).
CMYK ↔ Pantone Matcher
Approximate CMYK values to the closest solid Pantone matching system (PMS) color swatch.
Salinity — PSU ↔ g/kg ↔ % — seawater concentration
Convert between Practical Salinity Units (PSU), salinity concentration in g/kg (ppt ‰), and percentage (%).
Frequency ↔ wavelength — antenna length calculation
Determine electromagnetic wavelength from frequency and velocity factors. Get recommended quarter-wave and half-wave antenna lengths.
Carnot efficiency — hot ↔ cold temperature → max efficiency
Calculate the maximum theoretical thermal efficiency (Carnot Limit) of heat engines based on reservoir temperatures.