terican

Vol. 12 · 305 tools, indexed · Updated daily

A complete
reference
for everyday
calculation,
from kilograms
to mortgages.

305 calculators and converters, arranged on a single page so you never click twice. Quiet typography, exact arithmetic, no advertising.

178

calculators

127

converters

7

categories

In rotation today — Mortgage payment, BMI, Celsius ↔ Fahrenheit, Tip & split, Date difference, Compound interest, kg ↔ lb.

Editor's picks · Spring 2026

№ 01 · ToolCurrent Ratio CalculatorCalculate your current ratio instantly by entering current assets and liabilities. Get an immediate liquidity result with industry benchmark guidance.Open the tool№ 02 · ToolDays Sales Outstanding (Dso) CalculatorCalculate DSO to measure how quickly a business collects payment after credit sales. Enter accounts receivable, credit sales, and period length for instant results.Open the tool№ 03 · ToolFree Cash Flow To Firm (Fcff) CalculatorCompute FCFF from EBIT, tax rate, D&A, CapEx, and working capital changes for accurate enterprise valuation.Open the tool№ 04 · ToolDays Inventory Outstanding (Dio) CalculatorCalculate Days Inventory Outstanding (DIO) to measure how many days a company holds inventory before selling it, using COGS and average inventory values.Open the tool

The complete index

Sort: Subject · View: Columns · 8 categories

construction01
№ 01 · 1 tool
finance81
№ 02 · 81 tools
legal00
№ 03 · 0 tools
business22
№ 04 · 22 tools
math96
№ 05 · 96 tools
general62
№ 06 · 62 tools
physics37
№ 07 · 37 tools
health06
№ 08 · 6 tools

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.