Advanced scientific calculator + 13 financial & practical tools in one elegant app.
7-day free trial · No credit card required
Lightning fast
Instant results
Private
Zero data collected
Secure
Local data only
13 tools included
Everyday tools built for speed — no ads. Live stock and crypto prices included.
Live stock and crypto prices (Apple, Tesla, BTC…).
Example: search AAPL
→ Apple: $213.07 (+1.2%) | Vol: 45M
Live exchange rates for 30+ world currencies.
Example: 1,000 EUR → USD
→ $1,072.50 (live rate)
Simulate your monthly payments, total cost and interest.
Example: $10,000 over 36 months at 3.5%
→ Monthly: $293.44 | Interest: $563.72
Project your capital with compound interest.
Example: $5,000 at 4% over 10 years
→ Net balance: $7,300 | Interest: $2,300
Calculate rental yield (gross/net) and notary fees.
Example: $200K property, $800/mo rent
→ Net yield: 4.2% | Notary fees: ~$15K
Project your retirement savings with contributions and returns.
Example: age 30, $500/mo, 5% return
→ Capital at 65: $476K | $1,587/mo
Instantly calculate the price after discount and your savings.
Example: -30% on $89.90
→ Final price: $62.93 | Savings: $26.97
Calculate pre-tax, tax amount, and total price in one tap.
Example: $100 before tax at 20% VAT
→ Tax: $20 | Total: $120
Split the bill between friends and calculate the tip.
Example: $75 for 3 people, 15% tip
→ Per person: $28.75
Calculate your body mass index and basal metabolic rate.
Example: 165 lbs, 5'10", 30 years old
→ BMI: 23.7 (Normal) | BMR: 1,820 kcal/day
Estimate the cost of a trip based on your consumption.
Example: 220 mi, 30 mpg, $3.50/gal
→ Fuel: 7.3 gal | Cost: $25.67
Calculate the exact duration between two dates.
Example: 01/01/2024 → 05/20/2026
→ 870 days | 124 weeks | 28 months
Convert length, weight, temperature, volume, speed.
Example: 100 km/h → mph
→ 62.14 mph | 27.78 m/s
Convert between decimal, hexadecimal, binary and octal.
Example: 255 (decimal)
→ Hex: FF | Binary: 11111111 | Octal: 377
Calculator
Switch in one tap between a basic calculator and a full scientific mode with trigonometric functions, logarithms, powers and more.
1234 + 567 Ă—
89
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just $1.67/month
Download Numbra for free and start your 7-day trial.