Calculators
Financial, health, planning, and everyday calculators organized in one suite.
A broad calculator suite for common personal, work, and planning tasks, kept indexable but secondary to higher-intent workflow clusters.
What this suite is for
Calculators remains an important part of Tolyo.app, but this cluster is intentionally organized as a practical reference suite rather than the main navigation focus.
Featured tools
Start with the most-used tools in this suite, then branch into the full list below if you need a more specific workflow.
Mortgage Calculator
Estimate monthly payments with taxes, insurance & amortization.
Date Difference Calculator
Days, weeks, months between two dates.
BMI Calculator
Body Mass Index from height & weight.
VAT & GST Calculator
Add or remove sales tax from prices.
Travel Time Calculator
ETA from distance and average speed.
Shoe Size Converter
Convert US ↔ UK ↔ EU ↔ CM for men/women/kids.
What this suite is for
Calculators remains an important part of Tolyo.app, but this cluster is intentionally organized as a practical reference suite rather than the main navigation focus.
- Estimate payments, margins, or savings goals.
- Work through date and time calculations.
- Use health and body calculators for estimates.
- Check travel, transport, or footprint planning values.
Common workflows
These are the kinds of tasks people typically chain together when they browse this part of Tolyo.app.
- Move between finance, transport, and date planning calculators.
- Use calculator tools as quick reference pages instead of spreadsheets.
All Calculators
Browse every tool assigned to this suite. These links are also used across the site to strengthen internal linking between related tasks.
Mortgage Calculator
Estimate monthly payments with taxes, insurance & amortization.
Date Difference Calculator
Days, weeks, months between two dates.
BMI Calculator
Body Mass Index from height & weight.
VAT & GST Calculator
Add or remove sales tax from prices.
Travel Time Calculator
ETA from distance and average speed.
Loan Calculator
Monthly payment & interest breakdown for personal, auto, student loans.
Auto Loan Calculator
Car payment, interest, and total cost by term & APR.
Student Loan Calculator
Plan payments with interest, term, and extra payments.
Compound Interest Calculator
Project growth with compounding, deposits, and rate.
Simple Interest Calculator
Quick interest estimate without compounding.
ROI Calculator
Return on investment with absolute and percentage gains.
SIP Calculator
Systematic investment growth projections with compounding.
Retirement Calculator
Estimate nest egg, withdrawals, and longevity.
Salary Tax Calculator
Estimate income after taxes and deductions.
Income After Tax
Net take-home pay from gross salary.
Inflation Calculator
Compare past and present value of money.
Savings Goal Calculator
How much to save monthly to hit a target.
Rent vs Buy Calculator
Compare home buying vs renting over time.
CD Calculator
Certificate of deposit returns with compounding.
Discount Calculator
Sale price after discount and tax.
Tip Calculator
Split bills and add tip in seconds.
Profit Margin Calculator
Compute margin, markup, and profit from cost & price.
Overtime Pay Calculator
Extra pay from hours worked beyond regular time.
Body Fat Calculator
Estimate body fat % using common formulas.
BMR Calculator
Basal Metabolic Rate & daily calorie needs.
Calorie Intake Calculator
Daily calories for weight loss, gain, or maintenance.
Due Date Calculator
Estimate baby’s due date from LMP or conception.
Ovulation Calculator
Fertile window prediction by cycle length.
Period Calculator
Track cycle dates and next period prediction.
Sleep Cycle Calculator
Best sleep/wake times aligned to cycles.
Water Intake Calculator
Recommended daily water based on weight & activity.
BAC Calculator
Blood alcohol content estimate by drinks & time.
Calorie Burn Calculator
Calories burned by activity and duration.
Macro Calculator
Daily protein, carbs, and fat targets.
Heart Risk Calculator
Estimate cardiovascular risk with common scores.
Glycemic Load Calculator
Compute GL from GI and carbs per serving.
Percentage Calculator
Find X% of Y, percentage change, and differences.
Fraction to Decimal
Convert between fractions, decimals, and percents.
Proportion Calculator
Solve for missing values in proportions.
Average Calculator
Mean, weighted mean, sum & count.
Median & Mode Calculator
Find middle and most frequent values.
Standard Deviation
Population & sample SD and variance.
Permutations & Combinations
nPr and nCr for counting problems.
Age Calculator
Exact age in years, months, days from DOB.
Fuel Cost Calculator
Trip fuel cost by mileage and gas price.
Mileage Calculator
Average mileage & cost per km/mi.
Toll Calculator
Estimate tolls along a route.
CO₂ Footprint Calculator
Estimate emissions from flights or drives.
Travel Daily Budget
Set a per-day budget by trip length.
Grade Calculator
Compute course grade from weighted components.
GPA Calculator
Term & cumulative GPA (weighted/unweighted).
Yes/No Decision
Fair coin-flip style decision helper.
Related suites
If you are moving across nearby workflows, these suites are usually the next most relevant places to continue.
Everyday Utilities
Simple converters, timing tools, and practical everyday helpers.
Text & Writing Tools
Count, compare, clean, rewrite, and organize text for writing workflows.
Device & Browser Tools
Check webcams, input speed, timers, and browser-based device diagnostics.
FAQ
Quick answers about this tool suite and how to use it.