The Notes Calculator Blog
Calculator guides & deep dives
Practical math, written like a friend explaining it over coffee. Every post comes with an embedded calculator you can use right in the browser.
All posts
10–18 of 24
-
Byte Converter: KB vs KiB, MB, GB and TB Explained
Free byte converter for bits, bytes, KB, MB, GB and TB. 1 KB is 1,000 bytes, 1 KiB is 1,024. See why a 1 TB drive shows 931 GB, and convert any size.
-
Hex to Decimal Converter: Hex, Binary & Octal (0xFF = 255)
0xFF to decimal is 255, and 11111111 in binary. Convert hex to decimal, binary and octal with step-by-step formulas and a free converter that works both ways.
-
Free Currency Converter: 200+ Currencies & Crypto
Free currency converter with live rates for 200+ fiat and crypto currencies. Convert USD, EUR, GBP, BTC, ETH, and more instantly with real-time exchange rates.
-
Free Tip Calculator: Calculate Tips & Split the Bill
Free tip calculator to figure out how much to tip at restaurants. Calculate tip amount, total bill, and split between any number of people instantly.
-
Free Discount Calculator: Find the Sale Price Instantly
Free discount calculator to find the final sale price after any percentage off. Calculate savings, compare deals, and understand stacking discounts.
-
Free Loan Payment Calculator: Monthly Payment & Interest
Free loan payment calculator for mortgages, car loans, and personal loans. Enter the amount, interest rate, and term to see monthly payments and total interest.
-
Free Unit Converter: Length, Weight, Temperature & Volume
Free unit converter for length, weight, temperature, and volume. Convert between metric and imperial units instantly with formulas and conversion tables.
-
Free Profit Margin Calculator: Margin, Markup & Profit
Free profit margin calculator. Enter cost and revenue to calculate profit margin, markup percentage, and gross profit, with margin vs markup explained.
-
Free Compound Interest Calculator: See Your Money Grow
Free compound interest calculator with formula breakdown. Enter principal, rate, and time to see how your savings and investments grow with compound interest.
Stop calculating in your head.
Every guide on this blog comes with a calculator you can use immediately. Or grab the full app for free on every platform.
Free forever plan · No credit card · Cross-platform