Science & Technology Calculators
Our science and technology calculators span physics, data systems, cloud capacity planning, acoustics, and astrophotography. They translate complex relationships into clear numbers, helping students, hobbyists, and professionals plan, measure, and verify results with confidence.
Angular Velocity Calculator
Calculate angular velocity in rad/s from angular displacement and time or from RPM, plus linear speed.
Astrophotography Calculator
Calculate maximum exposure times using NPF and 500 rules, stacking recommendations, and SNR improvements for astrophotography.
Buoyancy Calculator
Calculate the buoyant force on a submerged object with Archimedes principle and check whether it floats.
Centripetal Force Calculator
Calculate the centripetal force and acceleration for circular motion.
Cloud Egress Cost Calculator
Optimize cloud data transfer costs across AWS, Azure, GCP, Cloudflare R2, and Backblaze B2 with tier-aware pricing and savings recommendations.
Doppler Shift Calculator
Calculate the observed frequency and pitch shift of the Doppler effect for sound.
Escape Velocity Calculator
Calculate the escape velocity from a planet or moon using its mass and radius.
Free Fall Calculator
Calculate fall time and impact velocity for an object dropped from a height.
Orbital Period Calculator
Calculate the orbital period of a satellite using Kepler third law.
Pendulum Period Calculator
Calculate the period and frequency of a simple pendulum from its length and local gravity.
Pressure Calculator
Calculate pressure, force, or area with P = F / A and convert between pascals, kilopascals, and psi.
Projectile Motion Calculator
Calculate range, maximum height, and time of flight for a launched projectile.
Redis Memory Calculator
Estimate Redis memory usage with accurate overhead modeling for strings, hashes, lists, sets, and sorted sets including jemalloc fragmentation.
Reynolds Number Calculator
Calculate the Reynolds number and classify fluid flow as laminar, transitional, or turbulent.
Room Acoustics Calculator
Calculate room modes, RT60 reverberation time, Schroeder frequency, and optimal speaker placement for any room geometry and materials.
SLA Uptime Calculator
Calculate allowed downtime, error budgets, and financial impact for SLA targets from 99% to 99.999% with break-even analysis.
Snell's Law Calculator
Calculate the angle of refraction and critical angle using Snell's Law.
Specific Gravity Calculator
Compute specific gravity as the ratio of a substance density to a reference fluid.
Specific Heat Calculator
Calculate heat energy, mass, specific heat, or temperature change with Q = m·c·ΔT.
Spring Constant Calculator
Solve Hooke law for spring constant, force, or displacement and find elastic energy.
Terminal Velocity Calculator
Calculate the terminal velocity of a falling object from its mass, area, drag coefficient, and fluid density.
Thermal Expansion Calculator
Calculate linear, area, and volume thermal expansion of materials from a temperature change.
Thin Lens Calculator
Solve the thin lens equation for focal length, object distance, image distance, and magnification.
Torque Calculator
Calculate torque, force, or lever arm using τ = F × r × sin(θ) for rotational systems.