All Calculators
Everything in one place, organized by category.
Financial Calculators
View category →All the money math in one place—mortgages, loans, interest, and payments—with clear visuals and schedules.
Monthly payment, total interest, payoff.
Payment, interest, and schedule.
Monthly payment, total cost, affordability.
Balance over time; principal vs interest.
Impact of extra/biweekly payments.
Compare offers, APR, break-even.
Simple interest with contributions.
Fixed-term or fixed-payment scenarios.
APY/APR compounding, annually to daily.
Real APR with financed & upfront fees.
Split the bill and apply tip pre/post-tax.
Fitness & Health Calculators
View category →Macros, calories, BMR, TDEE, BMI, body fat, ideal weight, and target heart rate—quick estimates with clear guidance.
Body fat estimate from measurements.
Body Mass Index with ranges.
Healthy weight ranges by height.
Daily calorie target from age, sex, activity.
Basal Metabolic Rate at rest.
Total Daily Energy Expenditure.
Macros by plan or custom split.
Training zones by age and intensity.
Math Calculators
View category →Percentages, fractions, statistics, and scientific mode—everyday math done right.
Geometry Calculators
View category →Triangles and plane shapes with visuals and formula steps.
Date & Time Calculators
View category →Compute time between, add/subtract durations, and calculate age—with clean steps.
School Calculators
View category →Grades and GPA with instant results and clear breakdowns.