Measure • Model • Explore
From lab conversions to physics and statistics, explore calculators that make research-grade math feel approachable.
Browse every science tool on AgentCalc — then save the ones you use for labs, homework, or quick sanity checks.
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A hand-picked starting set of 24 calculators. Browse all 518 science calculators through the topic hubs above, or use search.
Convert earthquake moment magnitude into radiated seismic energy, seismic moment and TNT equivalent, compare two quakes, and see why one step is about 32 times.
Estimate local (Richter) magnitude from Wood-Anderson amplitude and hypocentral distance with the IASPEI standard ML equation, plus a distance-sensitivity chart.
Interactive rocket equation calculator with mass burn, velocity, and energy tracking on a responsive canvas.
Determine the gravitational acceleration on any planet or moon using its mass and radius. Explore how surface gravity shapes planetary environments.
Estimate buffer capacity for a weak acid/conjugate base pair from pKa, acid concentration, and base concentration.
Calculate an ideal buffer pH from pKa and conjugate base-to-acid concentrations with the Henderson–Hasselbalch equation for laboratory buffer planning.
Translate cleaned DNA or RNA triplets in a selected forward reading frame into one-letter amino-acid codes with the standard genetic code, including visible stop codons.
Estimate mean sequencing depth, Lander-Waterman coverage breadth, the share of bases above a target depth, and the reads a run needs to get there.
Estimate galaxy distance from redshift with Hubble's Law using an adjustable Hubble constant and a low-redshift velocity approximation.
Convert your Earth age into Mercury, Venus, Mars, Jupiter, and other planetary years using average orbital periods. Includes formulas, examples, assumptions, and an optional orbit-timing mini-game.
Enter a real 3×3 matrix to compute its characteristic polynomial, eigenvalues, and a real eigenvector for each real root.
Compute the characteristic polynomial of a small real matrix and see how its coefficients connect to trace, determinant, and eigenvalues.
Find chord length, arc length, and segment area from a radius and central angle, with a live circle diagram, MathML formulas, and a worked example.
Measure a sphere's volume and surface area from its radius with this calculator. See the formulas, a worked example, and the main assumptions behind the result.
Beta distribution calculator for the Beta(a, b) PDF, exact incomplete-beta CDF, mean, variance, mode, quantiles and Bayesian posterior updates.
Estimate extinction probability, short-run survival, and criticality for Galton–Watson branching processes with Poisson, binomial, or custom offspring laws.
Estimate household electrical demand, compare it with your service size, and review conservative breaker and panel upgrade guidance for common residential loads.
Estimate resistive heating power and energy for a resistive load from voltage or current, resistance, and time.
Estimate how many days a battery bank can run an off-grid refrigerator using daily energy demand, battery capacity, depth of discharge, inverter losses, and solar recharge.
Estimate how many solar panels and how much battery storage a tiny home needs using daily energy use, panel wattage, sun hours, efficiency, and autonomy days.
Estimate HVAC cooling capacity in BTU/hr and tons for a room, house, or office using square footage, climate, insulation, sun exposure, and internal heat gains. Compare sizing assumptions and review practical limits.
Calculate nominal bolt shear strength Vn and design shear strength φVn from bolt diameter, ultimate tensile strength, number of shear planes, and whether threads are in the shear plane. Includes formulas, assumptions, a worked example, practical design notes, and an optional bolt-alignment mini-game.
Estimate conveyor belt effective tension, tight-side force, and drive power from belt length, speed, load rate, belt weight, lift height, and wrap angle.
Size any round pipe: flow rate, velocity, Reynolds number, Darcy friction factor and head loss from Colebrook-White, with schedule 40 IDs and roughness data.
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