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Global SolvePilot collection

Free online calculators for everyday decisions

Choose a universal tool that works with your own currency and measurements. Calculations run privately in your browser, and every page explains its formula, assumptions and limits.

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15 available
Money

Compound Interest

Project investment growth with monthly compounding using any currency, rate and time period.

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Money

Savings Goal

Find the monthly amount required to reach a savings target by a chosen deadline.

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Money

Mortgage Payment

Estimate a fixed-rate mortgage payment, total repayment and lifetime interest in any currency.

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Everyday

Discount

Calculate the sale price, amount saved and final price after an optional tax or service rate.

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Business

Sales Tax & VAT

Add or remove a sales-tax or VAT percentage and separate the tax from the net amount.

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Business

Profit Margin

Compare gross profit, margin on revenue and markup on cost without assuming a currency.

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Business

Break-Even

Find the units and revenue needed to cover fixed costs from price and variable cost per unit.

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Everyday

Tip

Calculate a tip, total bill and per-person payment for restaurants and services worldwide.

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Everyday

Split Bill

Divide a shared bill after adding a tip or service percentage and optional shared extras.

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Everyday

Unit Price

Compare two pack sizes by cost per unit to identify the lower-priced quantity.

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Business

Work Hours

Calculate paid hours and estimated earnings from start time, end time, breaks and hourly rate.

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Technology

Download Time

Estimate how long a file takes to download from its size, connection speed and practical efficiency.

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Everyday

Running Pace

Convert running distance and time into pace, average speed and common race projections.

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Technology

Aspect Ratio

Resize images and video while preserving proportions, or calculate a missing dimension.

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Vehicles

Fuel Economy

Convert between litres per 100 km, kilometres per litre and miles per US gallon.

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Global calculator collections

Vehicles calculators

Convert fuel-economy measurements correctly across regions and test standards.

Looking for local calculations? Pakistan tax, electricity, solar, property and marketplace tools remain in the Pakistan tools directory.