Vol. 12 · 104 tools, indexed · Updated daily
A complete
reference
for everyday
calculation,
from kilograms
to mortgages.
104 calculators and converters, arranged on a single page so you never click twice. Quiet typography, exact arithmetic, no advertising.
96
calculators
8
converters
0
categories
In rotation today — Mortgage payment, BMI, Celsius ↔ Fahrenheit, Tip & split, Date difference, Compound interest, kg ↔ lb.
Editor's picks · Spring 2026
№ 01 · ToolDividing Radicals CalculatorDivide radical expressions by separating coefficients and radicands. Handles square roots, cube roots, and higher-order radicals with automatic simplification.Open the tool№ 02 · ToolExpanding Logarithms CalculatorExpand logarithmic expressions using product, quotient, and power rules with detailed step-by-step solutions.Open the tool№ 03 · ToolExponential Function CalculatorCalculate exponential functions using the formula f(x) = a·b^x. Evaluate growth and decay for finance, science, and population modeling applications.Open the tool№ 04 · ToolMultiplying Exponents CalculatorCalculate the product of exponential expressions with the same base by adding exponents using the formula a^m × a^n = a^(m+n).Open the tool
From the editors
What we mean
by “exact”.
Every conversion on terican uses constants ratified by the Bureau International des Poids et Mesures, computed in arbitrary precision and rounded only at the moment of display.
Calculators are open source, audited annually, and accompanied by their formulas in plain language — because a calculator that hides its arithmetic is just a magic trick.