WIV: Calculator & Converter
Android calculators & converters · WorkinVirtual Private Limited
40 tools. One searchable collection.
The collection below matches the 40 tools in Android version 1.4.0, not a competitor's feature list. Fields start empty; your own inputs drive results. Update the existing app through Google Play; device and regional availability can vary.
Numbers
- Calculator — Basic and scientific maths with a clear angle mode.
- Percentage — Find a percentage, change or share.
- Average & totals — Mean, sum, count and range of a list of numbers.
- Proportion — Find the missing value in A / B = C / X.
- Fraction calculator — Exact fractions, mixed numbers and calculation steps.
- Number base converter — Exact whole numbers in binary, octal, decimal or hex.
- Equation solver — Solve a real linear or quadratic equation.
- Statistics — Median, variance and standard deviation.
- GCD & LCM — Greatest common divisor and least common multiple.
- Combinations & permutations — Count selections or ordered arrangements.
Shopping
- Discount & tax — See your final shopping price.
- Compare prices — Choose the better-value pack.
- Profit margin — Profit, margin and markup.
- Tax / VAT — Add tax or extract it from a tax-inclusive price.
- Two discounts — Apply two discounts in order, not by adding them.
- Tile & flooring estimate — Area, tile count and boxes with a waste allowance.
Money
- Split a bill — Split the total and an optional tip.
- Loan payment — Monthly payment and total interest.
- Savings goal — How long to reach your target.
- Compound savings — Estimate savings with monthly deposits.
- Simple interest — Interest without compounding; a planning estimate.
- Currency converter — Daily reference rates, with the rate date clearly shown.
Everyday
- Unit converter — 10 categories, from length to data storage.
- Days between dates — Plan deadlines, trips and reminders.
- Age calculator — Age in years, months and days.
- Add / subtract dates — Move a date by days, weeks, months or years.
- Area & perimeter — Rectangle, circle or triangle from its dimensions.
- Volume — Box, cylinder or sphere using one common length unit.
- Add / subtract time — Combine durations in hours, minutes and seconds.
- World time converter — Convert a selected date and time between cities.
- Right triangle — Find a hypotenuse or one missing leg.
- Recipe scaler — Scale an ingredient to a new number of servings.
- Electricity cost — Energy and usage cost using your own tariff.
- Stopwatch — Start, pause, resume and record laps.
Work
- Work hours — Shift length, unpaid breaks and pay.
Travel
- Trip fuel cost — Fuel needed and estimated trip cost.
- Travel time — Time from distance and average speed.
- Fuel economy — Calculate km/L and L/100 km from a measured trip.
Study
- GPA calculator — Credit-weighted grade points on your chosen scale.
Engineering
- Ohm's law — Find voltage, current, resistance and power.
Familiar calculations, wider coverage.
- Basic and scientific calculator modes with Degrees/Radians, plus mixed-number fractions.
- Linear and quadratic equation solving, statistics, exact integer GCD/LCM and combinations/permutations.
- Date changes by days, weeks, months or years; city time conversion uses Android's time-zone rules, not a live clock feed.
- GPA uses the credits and grade points you provide; it does not assume your institution's grading rules.
- Electricity, flooring, recipe and Ohm's law tools are estimates with visible assumptions, not professional safety or purchasing advice.
Seven language options, bundled offline.
English, Urdu, Simplified Chinese, Traditional Chinese, Japanese, Korean and Indonesian. A supported phone language is selected automatically; an unsupported language falls back to English. An in-app choice is available. Labels, errors and explanations are translated, with local numeric-format rules and right-to-left layout where applicable.
Currency references, not live bank quotes.
18 currencies are supported: USD, PKR, EUR, GBP, AED, SAR, INR, CAD, AUD, JPY, CNY, KRW, IDR, TWD, HKD, MOP, SGD and NZD. Manual Refresh remains available. Optional automatic checks are off by default and run during converter use, at most once per local day after a successful check for that pair. Rate date and last-checked time are shown; saved rates can be reused offline. Fees and spreads are excluded.
Optional speech with an explicit review step.
Use a field's microphone, review the recognised text and explicitly accept a valid number. Cancel keeps the previous input. The phone's recognition provider controls language and online/offline availability; typing always remains available. This app does not record or retain audio.
Request a tool, suggest a service, report a problem.
A short request form opens a reviewable email draft to the displayed recipient. Replies arrive by email. Calculation history and entered amounts are not automatically attached, and no phone number is required.
TalkBack-compatible field labels and navigation are implemented. Automated accessibility checks and scoped human checks are not a guarantee of every device, voice or assistive-technology combination.