Calculator

Fill-up, mileage, and trip-cost math — without leaving the keypad. This calculator keeps everyday arithmetic fast, then adds a Fuel Desk for pump totals, range, and trip spend. Need a fill up calculator, mileage calculator, and trip cost calculator on the same pad? Keep reading. KEY FEATURES • Everyday math on one pad — add, subtract, multiply, divide, and percent with a live preview as you type. Large keys stay round on tall phones and fold covers • Fuel Desk on home — Fill, Range, and Cost chips sit above the keypad with a one-line formula hint. No wizard and no disconnected demo tab • Fill — pump total — type volume times unit price, then equals saves a Fill row in history • Range — distance per fuel — divide distance by fuel used to estimate how far a tank goes. The row is tagged Range • Cost — trip spend — multiply distance by cost per distance, or reuse a fill total. Tagged Cost in the same list • A fuel calculator on the same pad — liters or gallons, miles or kilometers: type the units you already use. Helpers share the same engine • History you can reuse — filter by Fill / Range / Cost. Tap a row to restore the expression. Empty filters show a simple empty state. Delete one row or clear all • Readable totals worldwide — locale-aware thousands separators, not a country-locked currency or tax product • Theme, sound, and languages — light, dark, or system. Optional key vibration and sound. Pick a language on first run and change it later in Settings • Privacy-minded setup — welcome explains notifications, phone access for after-call tools, and (when needed) Home, then one system prompt at a time PERFECT FOR • Daily commuters checking fill-up totals before they tap to pay • Car owners comparing range after a long highway run • Road-trip drivers estimating trip cost from distance and fuel price • Rideshare and delivery drivers logging simple fuel math between jobs • Anyone who wants a real keypad first, with road helpers on the same screen WHY IT HELPS Pump math is simple until you are at the pump or planning a drive. A dedicated mileage app often wants GPS, a fuel card, or a country tax table. A basic pad does the arithmetic but forgets which total was a fill, a range, or a trip cost. Fuel Desk keeps those three jobs on the keypad you already use. Tap Fill, Range, or Cost, follow the hint, and press equals. The same engine writes a tagged history row so you can filter and restore later — no extra app and no disconnected demo screen. Units stay yours. Totals follow your device locale worldwide. HOW IT WORKS 1. Use the keypad like any everyday arithmetic tool. 2. Tap Fill, Range, or Cost on the Fuel Desk strip. 3. Follow the one-line hint (volume × unit price; distance ÷ fuel used; distance × cost-per-distance) and press equals. 4. Open history to filter, delete, or restore an expression. TECHNICAL DETAILS • Android 10 and newer. Offline math — no network needed to calculate. History stays on the device • Light, dark, and system appearance. Optional key vibration and key sound • First-run language picker; change locale later in Settings • Optional notifications after a short primer. Adaptive ads after language choice; manage privacy in Settings • Primers explain each permission before the system dialog. Privacy policy is on welcome and in Settings WHAT THIS IS — AND IS NOT This is a calculator. It is not a GPS tracker, fuel-card wallet, or country-specific tax tool. Units are whatever you type so it works worldwide. GET STARTED Finish the short setup, pick a language, and try a Fill total on the Fuel Desk. Download this calculator now. Keep fill-up, mileage, and trip-cost math on the same keypad — try it today.