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Drone Flight Calculator

Calculate accurate flight times for your drone based on real-world conditions including wind, temperature, altitude, and terrain.

Updated January 20, 2026

X21W

WiFi FPV version of X21 with live video streaming to mobile device. Features altitude hold and headless mode for beginner-friendly aerial photography.

FpvToy
Released 2017
$58Price
55gWeight
6minFlight
2/12Wind
45kmRange
5° to 40°Temp

Performance Analysis

Comprehensive analysis of drone capabilities and comparisons

Price

$58.00

Market price • Above average

Weight

55 g

Sub-250g: No registration required • Above average

Flight Time

6 mins

vs 60min max6/60

Normal conditions • Bottom 25%

Wind Resistance

2/15

Wind handling • Bottom 25%

Max Wind Speed

3 mph

Safe operating limit • Bottom 25%

Range

45 m

Transmission distance • Bottom 25%

Max Altitude

25 m

Operating ceiling • Bottom 25%

Temperature Range

5°C to 40°C

Operating temps • Standard range

Value Score

103.4

Flight mins per $1000 spent

Ready to Calculate Flight Time?

Use our advanced calculator to determine the exact flight time based on your specific conditions, including wind speed, temperature, and altitude.