Tools
All EverydayBudd calculators and utilities in one place.
Money & Taxes
Calculate taxes, income, and financial obligations
Salary / Take-Home
See net pay with federal, FICA, state, local taxes
Self-Employed / 1099 Tax
SE tax + quarterly estimates
Capital Gains Tax
Short/long-term, NIIT, state taxes
Sales / VAT Estimator
US sales tax, EU VAT, custom GST rates worldwide
Loans & Credit
Calculate loan payments, interest, and debt payoff strategies
Loan Repayment
Payment, interest, amortization schedule
Mortgage Calculator
P&I, escrow, PMI, payoff date
Car Loan
APR, term, down payment, totals
Credit Card Payoff
Snowball/avalanche payoff date & interest saved
Saving & Investing
Plan for retirement, emergency funds, and investment growth
Compound Interest
Growth over time with contributions
Retirement Savings
401k/IRA projections, employer match
Investment Growth
Lump sum vs DCA, portfolio allocation
Emergency Fund Planner
Calculate target amount and plan your emergency fund growth
Currency & Converters
Convert currencies and units of measurement
Currency Converter
Live rates, historical sparkline
Unit Converter
Convert between units of measurement with precision
Lifestyle & Budget
Track expenses, subscriptions, and lifestyle costs
Cost of Living
Compare housing, taxes, utilities between cities
Subscription Tracker
Track recurring subscriptions and analyze spending
Pet Care Budget
Food, vet, grooming, insurance breakdown
Health
Estimate medical costs and health expenses
Medical Out-of-Pocket
Deductible โ coinsurance โ OOP max
Docs & Productivity
PDF tools and document processing utilities
PDF Merge / Split / Rotate
Client-side processing where possible
PDF Compress
Reduce size with wasm worker
PDF Converter
Convert images, HTML to PDF, merge PDFs
PDF Compare
Visual diff of two PDFs
Moving & Travel
Calculate moving costs and transportation expenses
Moving Cost Estimator
Distance, size, add-ons; partner lead option
Commute Cost
Fuel/EV cost, time, parking
City Insights
Explore cities and compare living costs
Explore Cities
Cards for major metros with salary and cost data
Math & Statistics
Statistical analysis, probability, and mathematical calculations
Normal Distribution
Curve, PDF/CDF, z โ x
Z-Score / P-value
Convert and interpret
Confidence Interval
Mean/proportion CI
Regression (Linear/Polynomial)
Fit + Rยฒ
Matrix Operations
Det/inverse/multiply
Derivative & Integral
Symbolic steps
Descriptive Stats
Mean/median/sd/skew
Probability Toolkit
Binomial/Poisson/t
Physics & Engineering
Mechanics, thermodynamics, and engineering calculations
Force/Work/Power
Mechanics quick calc
Kinetic & Potential Energy
Graphs vs mass/height
Projectile Motion
Trajectory plot
Ohm's Law
V=IR with combos
Coulomb's Law
Electric field/force
Wave Relations
F, ฮป, v converter
Thin Lens Equation
Focal length & image
Thermodynamics (ฮG/ฮH/ฮS)
Free energy calc
Chemistry & Biochemistry
Chemical calculations, stoichiometry, and molecular analysis
Molar Mass / Molecular Weight
Periodic table picker
Chemical Equation Balancer
Stoichiometric coefficients
Ideal Gas Law (PV=nRT)
Unit-aware
Stoichiometry Planner
Reactants โ products
Solution Dilution (C1V1=C2V2)
Step-by-step plan
Percent Composition
By mass
pH & pOH / pKaโKa
Acid/base helper
Buffer Maker (HendersonโHasselbalch)
Target pH
Biology & Lab Research
Laboratory calculations, molecular biology, and research tools
Serial Dilution & CFU/mL
Schema + chart
OD600 โ Cell Count
Species presets
PCR / qPCR Mix
Master mix volumes
DNA/RNA Molarity
Ng/ยตL โ nM
Enzyme Kinetics
MichaelisโMenten plot
BeerโLambert
A=ฮตcl with curve
Centrifuge RCF
RPM โ g
Stock โ Working Solution
Step planner
Data Science & Operations
Statistical analysis, operations research, and data processing
Correlation & Coefficients
R, Rยฒ, covariance
Sample Size / Power
Mean/proportion tests
Queueing (M/M/1, M/M/c)
Wait time, util
Linear Programming
Simplex solver
Monte Carlo Simulator
Random trials
Six Sigma
DPMO, sigma level
ROI / NPV / IRR
Finance ops
Confusion Matrix
Precision/recall/F1
Education & GPA
Academic calculations, grade planning, and learning tools
GPA Calculator
Weighted/unweighted
Grade / Exam %
Needed-to-score
Learning Curve
Ebbinghaus model
Time Conversion
Hours/minutes/days
Quiz Guessing Probability
MCQ odds
Assignment Weighting
Category planner
Fun & Explorers
Entertaining calculations and exploratory tools
Weight on Other Planets
Gravity difference
Carbon Footprint (quick)
Estimate COโe
IQ Bell Curve Visualizer
Simulated percentile
Random Number & Dice
Reproducible seed
Recipe / Serving Scaler
Cooking math
Age on Planets
Orbital math
Universal Tools (Science)
Essential scientific calculators and universal utilities
Scientific Calculator
Full features
Unit Converter
All dimensions
Percentage / Ratio / Average
Quick math
Equation Solver
Linear/quadratic
Molarity & Dilution (quick)
Shortcuts
Stats Quick Calc
Mean, SD, var