CalcHub : All Calculators

One app. A wide range of useful calculations.

CalcHub answers one question: what do you want to calculate? Search or browse, enter your numbers, get a clear answer with the working shown.

WHAT YOU CAN WORK OUT

FINANCE — Compound and simple interest, investment growth, savings goals, retirement, inflation, net worth, budget, salary, tax and VAT.

LOANS — Repayments, EMI, balloon payments, personal, student and business loans with the fees and grace periods priced in. Backwards too: what you can borrow, the real rate a lender charges, and how long a card takes to clear.

MORTGAGE — Payments with tax, insurance and HOA. What your income supports, deposit and LTV, rent against buy. Already own? A full schedule, what overpaying saves, whether refinancing pays, and the yield on a rental.

BUSINESS — Revenue after fees and returns, a full income statement, margin and markup and the difference that costs shops money. Pricing that survives marketplace fees, break-even, ROI, ROAS, acquisition cost and lifetime value.

CREATORS — What a thousand views actually pays, and why your RPM is a third of the CPM in your dashboard. A month of channel income across every stream, what to quote for a sponsored piece, and what a video costs to make once your own hours are counted.

MATH — Percentages every way round. Fractions added and reduced exactly, with the working. Ratios, proportions, averages. A scientific calculator you type whole expressions into. Powers, roots, logarithms, triangles, shapes, solids, probability and statistics.

HOME AND BUILDING — Measure a room once and get floor, wall and ceiling area plus a squareness check. Land in rai, ngan and square wah. Concrete in bags, paint in tins, tiles counted with their grout joints, flooring with the waste the pattern costs. Roof area from the pitch, not the plan.

CARS — Depreciation, finance, and leases priced properly from the money factor. Fuel for a journey, what a tank returned, charging an EV against the petrol it replaced, trips split between everyone in the car, and mileage claims with the bands done right.

STUDY — A test scored as a mark, a grade and a pass. Your grade so far, divided by the weight actually marked. What the final exam has to score — even when the honest answer is "that grade has gone". GPA and cumulative GPA, US or Thai.

HEALTH — BMI, BMR, body fat, ideal weight. TDEE three ways, daily calories, a deficit worked back from your goal and deadline, macros, protein, water. Heart rate zones, pace and race predictions. Estimates, never a diagnosis.

EVERYDAY — Age, tips, stacked discounts, what an appliance costs to run, a bill split by shares. Days between dates, countdowns in working days, hours with breaks and overnight shifts, and time zones that get daylight saving right.

UTILITIES — The answers that are not money or maths. How far apart two coordinates are and which way to head. What the heat really feels like, and the humidity at which it turns dangerous. When to set the alarm so it lands at the end of a sleep cycle rather than the middle. Bra and shoe sizes across countries, what a tyre change does to your speedometer, horsepower from torque or from a quarter mile, and a golf handicap the way the World Handicap System actually works it out.

BUILT TO BE USED, NOT ADMIRED

• Search that understands what you mean — "home loan" finds Mortgage, "EMI" finds the instalment calculator.
• Favourites and recently used, at the top of the home screen.
• History you can reopen, with every input restored exactly.
• "How is this calculated?" on every result, with the actual formula.

WORKS THE WAY YOU DO

• Works offline. No account, ever.
• 30+ currencies, metric and imperial.
• Light, dark and AMOLED black themes.
• Fast on budget phones.
• Translated into English, Thai, Japanese, Simplified Chinese and Spanish.

Estimates are for information only and are not financial, medical, tax or legal advice.