Our Story

Built for India, by Indians

Two founders. One mission: build the calculator hub India actually deserves — fast, free, and honest about the math.

Why CoinCalc exists

Every Indian who has searched "income tax calculator" or "SIP calculator" knows the experience: pages stuffed with ads, popups asking for your email, slow load times, calculators buried below 800 words of SEO copy.

We thought: this is wrong. A calculator should give you your answer in one second. No tricks. No ads. No signup.

What makes us different

  • Speed first. Under 1 second mobile load.
  • Indian context. Lakh and crore everywhere. Updated for every Union Budget.
  • Show the math. Every result page shows the exact formula and the regulatory source.
  • No accounts, no ad-tracking. Calculations run entirely in your browser; we keep only an anonymous visit counter.
  • Live data where it counts. Real fund NAVs from AMFI, FX rates from the ECB — refreshed daily, no fake numbers.
  • SubhSri AI assistant. ChatGPT-style help wired to CoinCalc's verified tools.

The roadmap

We're at 34+ calculators today and growing. Coming soon: Hindi interface, embeddable widgets, white-label PDFs.

The Founders

Faces behind the formulas

CoinCalc isn't a faceless content farm. It's a two-person company: a co-founder who obsesses over clarity, and an engineering co-founder who stays behind the code making every answer load in under a second. We use these calculators ourselves — and refuse to ship a number we can't prove.

Krati Khandelwal

Co-founderProduct & Money Clarity

Krati started CoinCalc on one belief: every Indian — the first-time SIP investor in Indore and the CA in Mumbai alike — deserves the right answer to a money question in one second, with the math shown and nothing hidden. She leads product and content, and is the reason every calculator is checked against the actual Finance Act, not a guess. Her north star is turning “I don’t understand my money” into “now it makes sense,” for a hundred million Indians.

“Money decisions are hard enough. Understanding the math shouldn't be.”
Transparency

Live data sources

Numbers that move are pulled from public, authoritative feeds — not invented in our backend.

Mutual fund NAVs

Daily after 11 PM IST
Publisher
AMFI (Association of Mutual Funds in India)
Used in
SIP · Step-Up SIP · Lumpsum · Goal SIP · SWP calculators
Endpoint
portal.amfiindia.com/spages/NAVAll.txt
Visit publisher →

Foreign exchange rates

Daily
Publisher
exchangerate-api.com (open feed)
Used in
NRE FD calculator (USD, AED, SAR, QAR, KWD, OMR, GBP, SGD, EUR, CAD, AUD)
Endpoint
open.er-api.com/v6/latest/USD
Visit publisher →

What we deliberately don't use

  • Scraped competitor data. We never pull from sites whose ToS forbids automated access.
  • Live bank FD rates. There is no single official feed; the only way to show them accurately is partnership-by-partnership, which we'd rather earn than guess at.
  • Live NSE/BSE quotes. Free wrappers are fragile and break without warning; paid feeds aren't in our budget yet.

When a real-time source isn't reliable, we use a clearly-labelled assumption (default rates, category averages) and tell you in the calculator's "source" footer where the number came from. Spotted something stale? Email us — we re-verify every quarter.

Get in touch

Found a bug? Want to suggest a calculator? Drop us a line.