Calculators
Percentage, subnet, unit converters, and computation tools.
Math
Newcalculator
Calculator
A responsive calculator supporting basic arithmetic, scientific functions (sin, cos, tan, log, sqrt, power), parentheses, and a running history of past calculations. Keyboard-friendly with instant evaluation.
calculatormathscientific
calculator
Chmod Calculator
Calculate Unix file permissions — toggle checkboxes or type the octal/symbolic value.
chmodpermissionsunix
Newcalculator
Percentage Calculator
A multi-mode percentage calculator covering all common scenarios: percentage of a number, percentage change between values, percentage difference, and adding/subtracting percentages. Instant results as you type.
percentagecalculatormath
This tool is coming soon. Stay tuned!
BetaProcalculator
Subnet Calculator
Enter an IP address and CIDR prefix to instantly calculate the network address, broadcast address, subnet mask, wildcard mask, usable host range, and total number of hosts. Essential for network planning and troubleshooting.
subnetcidrip
Newcalculator
Unit Converter
Convert between 100+ measurement units across 7 categories: length, weight, area, volume, speed, temperature, and digital storage. Results update instantly as you type. Handles metric, imperial, and digital units.
unitconverterlength
Converters
calculator
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal bases.
binaryoctaldecimal
calculator
Currency Converter
Convert between 30+ world currencies with live rates and multi-currency comparison.
currencyexchangemoney
calculator
Epoch Batch Converter
Convert multiple Unix timestamps at once. Paste a list and get human-readable dates.
epochtimestampbatch
calculator
Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports seconds and milliseconds.
timestampunixdate
Finance
This tool is coming soon. Stay tuned!
BetaProcalculator
Freelance Calculator
A multi-mode freelance business calculator. Determine your ideal hourly or daily rate based on desired annual income, estimate project costs from hours and rate, and see your net income after taxes, expenses, and self-employment tax.
freelancerateincome
This tool is coming soon. Stay tuned!
BetaProcalculator
Home Loan Calculator
A full-featured mortgage and home loan calculator. Enter loan amount, interest rate, and term to see monthly payments (EMI), total interest paid, and a detailed year-by-year amortization schedule with principal vs. interest breakdown.
mortgageloanemi
This tool is coming soon. Stay tuned!
BetaProcalculator
Tax Calculator
A comprehensive income tax estimator with US federal progressive brackets for 2024. Enter gross income, filing status, and deductions to see marginal and effective tax rates, per-bracket breakdown, and net take-home pay.
taxincomefinance