CalcSphere Mobile Hub
High-precision financial, tax, and health calculators built for US standards.
US Income Tax
Federal & State TaxIRS tax brackets, deductions, net income, tax refund
US Salary Tax
Paycheck BreakdownTake-home pay, FICA, gross salary, bi-weekly estimator
US Mortgage
Home Loan EstimatorAmortization schedule, property tax, PMI, monthly house payment
US Loan Pay
Interest CalculatorPersonal loans, APR, compounding interest, debt payoff
US Car Loan
Auto FinancingVehicle down payment, auto loan term, dealership trade-in
Retirement
Pension & SavingsRetirement nest egg, inflation adjustments, future wealth
401k Growth
Employer MatchPre-tax contributions, compound interest, investment returns
Social Security
Retirement BenefitsFull retirement age (FRA), monthly benefits, lifetime estimates
US GPA Calcs
High School & CollegeWeighted GPA, unweighted scale, cumulative grading, credits
BMI Body Mass
Health & FitnessBody Mass Index, weight categories, adult fitness status