Age Calculator
Work out exact age and next birthday details.
- #age
- #birthday
- #countdown
Lookup
Tools for looking up information about various entities.
Calculator
Do everyday calculations with clarity: loans, interest, ROI, date difference, GPA, geometry and more.
APR / APY Converter
Convert between annual percentage rate and yield.
- #apr
- #apy
- #finance
Basic Calculator
A simple calculator for everyday arithmetic operations.
- #calc
- #scientific
- #expression
BMI / BMR / TDEE
Calculate body mass index, basal metabolic rate, and daily energy use.
- #bmi
- #bmr
- #tdee
- #health
Combinatorics Calculator
Compute factorials, permutations, and combinations.
- #nCr
- #nPr
- #factorial
Compound Interest
Calculate interest growth with compounding options.
- #interest
- #fv
- #pv
- #annuity
Currency Converter
Convert currencies using live exchange rates.
- #fx
- #currency
- #rates
Date Difference
Find the difference between two dates or add/subtract days.
- #date
- #diff
- #business-days
Geometry Area & Volume
Calculate area and volume for shapes and solids.
- #area
- #volume
- #geometry
GPA Calculator
Compute GPA from course credits and grades.
- #gpa
- #grade
Hash Generator
Generate MD5, SHA and other hash values for text or files.
- #hash
- #md5
- #sha
- #security
Loan Amortization
Build repayment schedules for loans and mortgages.
- #loan
- #mortgage
- #amortization
Percentage Calculator
Work out percentages, discounts, and markups with ease.
- #percent
- #discount
- #markup
- #reverse
Quick Stats
Get quick statistics like mean, median, and variance.
- #mean
- #median
- #std
- #quantile
Recipe Scaler
Scale recipe ingredients by servings or portion size.
- #recipe
- #scale
- #kitchen
ROI & Break-even
Analyze return on investment and break-even points.
- #roi
- #break-even
- #payback
Subnet Calculator
Work out network, broadcast, and usable IP ranges.
- #cidr
- #subnet
- #network
Tip Splitter
Split bills and tips between people with rounding options.
- #tip
- #split
- #bill