Free Conversion Tools
Real-time currency converter for 150+ world currencies, and a unit converter for length, weight, temperature, speed, area, and more — all free and instant.
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Free Tools
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Currencies
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Unit Types
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Currency Converter
Real-time rates for 150+ world currencies
Convert between any two of 150+ world currencies using live exchange rates updated throughout the day. Includes historical rate data, major and emerging market currencies, and instant results.
- Plan travel budgets by converting to local currency
- Price products for international e-commerce
- Track the value of foreign investments
Unit Converter
Length, weight, temperature, speed & more
Convert between units of measurement across all major categories: length, weight, temperature, speed, area, volume, pressure, and energy. Instant results using standard scientific conversion factors.
- Convert recipe measurements between metric and imperial
- Convert engineering specifications for international projects
- Check temperature in Celsius vs Fahrenheit while travelling
Which Tool Should I Use?
Match your conversion need to the right tool:
| I need to… | Example | Use this tool |
|---|---|---|
| Convert USD to EUR (or any currency) | $500 USD → how many Euros? | Currency Converter |
| Check live exchange rate for travel | Travelling to Japan — USD to JPY | Currency Converter |
| Price products for an international market | GBP price → USD, AUD, CAD equivalent | Currency Converter |
| Convert Celsius to Fahrenheit | 37°C → °F (body temperature) | Unit Converter (Temperature) |
| Convert kilometres to miles | 10 km → miles for a race distance | Unit Converter (Length) |
| Convert kilograms to pounds | 70 kg body weight → lbs | Unit Converter (Weight) |
| Convert cooking measurements | Cups → ml, tablespoons → teaspoons | Unit Converter (Volume) |
| Convert area units for property or land | Acres → m², hectares → sq ft | Unit Converter (Area) |
Common Unit Conversion Formulas
The most frequently used conversions — use the Unit Converter for any value instantly.
🌡️ Temperature
(°C × 9/5) + 32(°F − 32) × 5/9°C + 273.15📏 Length
km × 0.621371mi × 1.60934in × 2.54cm ÷ 2.54ft × 0.3048⚖️ Weight
kg × 2.20462lbs × 0.45359g × 0.035274oz × 28.3495kg × 0.157473All Unit Categories in the Converter
Length
m, km, ft, miles, in, yd, nautical miles
Weight/Mass
kg, lbs, g, oz, tonnes, stones
Temperature
°C, °F, K (Kelvin)
Speed
km/h, mph, m/s, knots
Area
m², ft², acres, hectares, km²
Volume
L, gallons, fl oz, cups, ml, m³
Pressure
Pa, bar, psi, atm, mmHg
Energy
J, kJ, cal, kcal, kWh, BTU
Major World Currencies Reference
The most traded currencies in the global forex market. All are supported in the Currency Converter.
| Code | Currency | Country / Region | Symbol |
|---|---|---|---|
| USD | US Dollar | United States | $ |
| EUR | Euro | European Union (20 members) | € |
| GBP | British Pound | United Kingdom | £ |
| JPY | Japanese Yen | Japan | ¥ |
| AUD | Australian Dollar | Australia | A$ |
| CAD | Canadian Dollar | Canada | C$ |
| CHF | Swiss Franc | Switzerland | Fr |
| CNY | Chinese Yuan | China | ¥ |
| INR | Indian Rupee | India | ₹ |
| SGD | Singapore Dollar | Singapore | S$ |
| HKD | Hong Kong Dollar | Hong Kong | HK$ |
| SEK | Swedish Krona | Sweden | kr |
| NOK | Norwegian Krone | Norway | kr |
| MXN | Mexican Peso | Mexico | $ |
| BRL | Brazilian Real | Brazil | R$ |
| EGP | Egyptian Pound | Egypt | £ |
Who Uses These Conversion Tools?
Travellers & Expats
Use the Currency Converter to budget trips, compare prices abroad, and understand how far your money goes in local currency before and during travel.
Businesses & E-commerce Teams
Use the Currency Converter to set international pricing, evaluate supplier quotes in foreign currencies, and assess cross-border transaction costs.
Engineers & Construction Teams
Use the Unit Converter to switch between metric and imperial measurements for materials, distances, and specifications in international projects.
Students & Educators
Use the Unit Converter to check physics homework, convert between SI and imperial units, and understand measurement systems across different curricula.
Why Use Texterfly Conversion Tools?
Instant Results
Both tools return results in real time as you type. No submit button, no page reload, no waiting — the answer appears immediately.
Private by Design
Unit conversions run entirely in your browser. Currency conversions fetch live rates from an external API but transmit no personal data.
Works on Any Device
Fully responsive on iOS, Android, and desktop. No app download, no account. Access from any browser on any device.
Frequently Asked Questions
What conversion tools does Texterfly offer?
Two free conversion tools: a Currency Converter (real-time rates for 150+ currencies) and a Unit Converter (length, weight, temperature, speed, area, volume, pressure, and more). Both are free, instant, and require no signup.
How do I convert Celsius to Fahrenheit?
Formula: °F = (°C × 9/5) + 32. Key values: 0°C = 32°F (water freezes), 20°C = 68°F (room temperature), 37°C = 98.6°F (body temperature), 100°C = 212°F (water boils). Use the Unit Converter → Temperature for instant results.
How do I convert kilometres to miles?
1 km = 0.621371 miles. So: 5 km = 3.107 mi, 10 km = 6.214 mi, 42.2 km (marathon) = 26.2 mi, 100 km = 62.14 mi. Reverse: 1 mile = 1.60934 km. Use the Unit Converter → Length.
How often are currency rates updated?
Rates are fetched from a live exchange rate API and updated throughout the weekday trading sessions. Forex markets are open 24 hours on weekdays. Weekend rates reflect Friday closing prices. For financial transactions, verify with your bank — applied rates include spreads and fees.
What currencies does the converter support?
All major currencies (USD, EUR, GBP, JPY, AUD, CAD, CHF, CNY, INR, SGD, HKD) and 130+ additional world currencies. Select any two from the dropdown lists to convert.
What unit categories does the converter support?
Length (metres, feet, miles, km, inches), Weight (kg, lbs, grams, ounces, tonnes, stones), Temperature (Celsius, Fahrenheit, Kelvin), Speed (km/h, mph, m/s, knots), Area (m², ft², acres, hectares), Volume (litres, gallons, fluid ounces, cups), and more.
What affects currency exchange rates?
Interest rate differentials, inflation rates, GDP and economic growth data, political stability, central bank interventions, trade balances, and market sentiment. Rates fluctuate continuously during weekday forex market hours.
Can I convert cooking measurements?
Yes. Volume units include cups, tablespoons, teaspoons, fluid ounces, millilitres, and litres. Note: the US cup = 236.6 ml; metric cup = 250 ml; UK cup = 284 ml. The tool uses the US cup as standard.
Are these tools free?
Yes. Both tools are 100% free with no registration, subscription, or payment required.
Is my data private?
Unit conversions run entirely in your browser — no data is sent anywhere. Currency conversion fetches live rates from an API but sends no personal data with the request.