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Calculators that explain the answer

Mortgage, EMI, compound interest (APY & schedules), SIP, BMI, live FX, and 506+ guided tools — with steps, examples, and formulas on every page.

Mortgage EMI SIP Compound Daily Compound Currency BMI

Every tool shows steps, a worked example, and the formula — so you can trust the number.

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Live FX

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506+ calculators · Free forever · No signup · Live FX · Charts & schedules · Educational estimates — not financial advice.

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What do you want to figure out?

Jump by goal — mortgage, EMI, SIP, BMI, FX, and more.

Plan a home payment

Mortgage P&I, tenure, interest, and yearly amortization schedule.

Estimate a loan EMI

Personal, auto, or home-style EMI with interest chart and schedule.

Grow with compound interest

Future value, APY, deposits, rate of return, and yearly schedule.

Project monthly investing

SIP / recurring investment growth illustrations.

See daily compounding

Day-by-day interest with deposits, reinvest %, and snapshots.

Convert currencies

Live educational FX for travel and freelancing.

Check BMI & calories

BMI, BMR, TDEE — educational fitness numbers.

Do scientific math

Trig, logs, powers — plus 3D viz nearby.

Split a bill & tip

Tip percent and even splits without mental math.

Find break-even units

Fixed costs, price, and contribution margin.

Live FX & money

USD, EUR, GBP, INR, AED and more — results format in your currency.

Chart

Charts & schedules

Amortization tables, compound yearly schedules with APY, SIP curves, and snapshots.

Guide

506+ guided tools

How-to steps, a worked example, formula notes, and FAQs on every page.

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Browse by category

Dense directories with counts — find tools in one tap.

109

Finance

Mortgage & EMI payments, daily/compound interest, SIP growth, taxes, savings, retirement, APR vs APY, and multi-currency money tools — each with guides, worked examples, and FAQs.

Math

Basic and scientific math, percentages, averages, algebra solvers, geometry (circle, Pythagoras), graphing, and showcase 3D tools — with formula notes you can check against homework.

Health & Fitness

BMI, BMR, TDEE, macros, body fat, water intake, one-rep max, and pregnancy due-date tools using published educational formulas — not medical advice.

Conversion

Length, weight, temperature, area, volume, speed, cooking, data, and time converters with clear SI / customary factors for school, travel, and DIY.

Date & Time

Date differences, age from date of birth, add/subtract days, and business-day helpers — leap years respected, holiday calendars usually manual.

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Everyday Life

Tips, bill split, fuel cost, recipe scaling, DIY quantities, GPA helpers, and household planning calculators with practical defaults.

Science & Engineering

Ohm’s law, kinetics, speed/distance/time, energy, and other textbook physics/engineering helpers with SI-friendly inputs for class and lab checks.

Business

Margin vs markup, break-even, hourly-to-salary, ROI, and pricing helpers so founders can pressure-test ideas before a full spreadsheet model.

Education

Final grade needed, grade percentage, GPA-style helpers, and study-friendly math — match your syllabus weights before trusting a target score.

Statistics

Mean, median, mode, standard deviation, combinations/permutations, and classical probability helpers for homework and quick exploratory checks.

Commodities & Metals

Live gold, silver, platinum, copper, and crude reference quotes plus weight, purity, and jewelry melt-value estimators — delayed educational feeds, not trade tickets.

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Scientific calculator

Trig, logs, powers — full keypad

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Finance

Percentage Calculator

Quick percentage of a number — useful for tips, discounts, and taxes.

Open Finance

Discount Calculator

Find the sale price and savings from a percent-off discount.

Open Finance

Compounding Calculator

Compare continuous vs n-times-per-year compounding, effective annual rate, and a year-by-year growth schedule.

Open Finance

CAGR Calculator

Compound annual growth rate between a beginning and ending value.

Open Math

Basic Calculator

Add, subtract, multiply, and divide two numbers.

Open Math

Average / Mean / Median / Mode

Compute mean, median, and mode from a list of numbers.

Open Math

Age Calculator

Calculate exact age in years, months, and days from a birth date.

Open Math

Pythagoras Theorem Calculator

Find the hypotenuse or either leg of a right triangle; optional 3D space diagonal.

Open Math

Circle Calculator

Area, circumference, and diameter from radius.

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