Simple tools that solve everyday problems.
Enodum provides reliable calculators, converters and digital utilities to help you get fast answers.
52+ free tools — no sign-up required
Browse all tools →What we offer
Calculators
Financial, health, math, and daily life calculators. Get instant answers to every number question.
Converters
Convert length, temperature, weight, volume, speed, area, and more between metric and imperial units.
Productivity Tools
Text utilities, time trackers, note-taking helpers and more to boost your daily productivity.
Coming soonAI Tools
Intelligent, AI-powered utilities for advanced problem solving and creative tasks. Coming soon.
Coming soonPopular tools
Start with our most-used calculators — trusted by thousands every day.
Age Calculator
Calculate your exact age in years, months, weeks, and days from your birthday. Free age calculator for any past or future date.
BMI Calculator
Calculate your Body Mass Index (BMI) instantly with metric or imperial units. Free BMI calculator with healthy weight range and category guidance.
Loan Calculator
Calculate monthly payments, total interest, and payoff schedule for any personal loan. Free loan calculator with amortization and total cost breakdown.
Mortgage Calculator
Calculate your monthly mortgage payment including taxes, insurance, and PMI. Free mortgage calculator with amortization schedule and affordability analysis.
Percentage Calculator
Calculate a percentage of a number, or find what percent one number is of another. Free percentage calculator for discounts, tips, and stats.
Tip Calculator
Quickly calculate the tip and total bill, then split it among any number of people. Free tip calculator for restaurants, delivery, and groups.
Discount Calculator
Find the final price after any discount or coupon. Free discount calculator that shows sale price, amount saved, and tax-inclusive total.
Why Enodum?
Simple
Clean, intuitive interfaces. No clutter, no confusion — just the tool and the answer.
Reliable
All formulas are tested against industry standards. Results you can count on.
Fast
Built with static generation. Pages load instantly — no server round trips needed.
Privacy-friendly
No tracking, no data collection, no ads. All calculations happen right in your browser.
About Enodum
Enodum is a collection of simple digital tools designed to turn complex problems into clear answers. We started Enodum because most online tools are either buried in ads, locked behind sign-ups, or built for spreadsheets rather than people.
Our focus is narrow on purpose: simplicity, reliability, and usefulness. Every tool runs entirely in your browser, loads fast on any device, and explains the math behind the result so you can trust it — not just copy an answer.
Today that means free calculators and converters. Tomorrow it means productivity utilities and AI-powered helpers, all under one trustworthy brand.
Frequently Asked Questions
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