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Area Tools - Online Area Utilities

Browse 50 area-related tools in your browser. Processing runs on Elysia Tools servers; text inputs are not stored and uploaded files are deleted after 6 hours.

Explore 50 browser-based tools for area-related formats and operations, with no software installation required.

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50 matching tools

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Tool usage guide

FAQ

What can I do with Area tools?

Area tools provide browser-based utilities for working with area-related formats and operations. Available functions vary by tool.

Do I need to install software?

No. You can access and use these tools through the browser interface.

How is my data handled?

Requests from the browser are processed on Elysia Tools servers. Text inputs are not stored, and uploaded files are automatically deleted after 6 hours.

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Lead Generation Quiz Launch and Contact Handoff
Memorial Drafts: Family Review and Print Handoff
Private Habit Records: Backup, Restore and Sharing Review
Article to X and LinkedIn Drafts: Fact Review and Handoff
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Math & Numbers

Acre to Hectare

Convert acres to hectares with configurable decimal precision

Math & Numbers

Acre to Square Feet

Convert acres to square feet with configurable decimal precision

Math & Numbers

Acre to Square Meter

Convert acres to square meters with configurable decimal precision

Geography

Area Calculator Map

Calculate area and perimeter from GPS coordinates on a map

Data Visualization

Area Chart Generator

Generate customizable area charts from data with filled areas under lines, perfect for showing trends and cumulative data

Math & Numbers

Area Unit Converter

Convert between different area units (square meters, square feet, acres, hectares, etc.)

Math & Numbers

Cooling Load Calculator (Area / U-value + Infiltration)

Estimate the cooling load of a room by the simplified ASHRAE steady-state method. Transmission sensible load Q_trans = Σ(A_i·U_i·ΔT) over envelope surfaces entered one per line as 'area,U' (U in W/(m²·K)). Infiltration/ventilation sensible Q_s = 1.23·ACH·V·ΔT and latent Q_l = 3010·ACH·V·ΔW (W), where ΔW is the indoor-outdoor humidity-ratio difference derived from dry-bulb temperature and relative humidity via the Magnus saturation fit. Total cooling load = total sensible + total latent. Temperature in °C/K/°F (only differences matter), area in m²/ft².

Math & Numbers

Cross Product Calculator

Compute the 2D signed area or 3D cross product between two vectors

Math & Numbers

Drag Force Calculator (F_D = ½·ρ·v²·C_D·A)

Compute the drag force on a body in a fluid stream: F_D = ½·ρ·v²·C_D·A (N), where ρ is the fluid density, v the free-stream velocity, C_D the drag coefficient (shape- and Reynolds-dependent), and A the reference (frontal projected) area. A built-in shape library supplies typical high-Re C_D values: sphere 0.47, hemisphere 0.42, long cylinder 0.81, disk/flat plate 1.17, cube 1.05, streamlined airfoil 0.04, long streamlined ellipsoid 0.07, cone 0.50; or choose 'Custom' to enter C_D directly. Optionally, with dynamic viscosity μ and characteristic length L, the Reynolds number Re = ρ·v·L/μ is computed, and the power dissipated by drag P = F_D·v (W). Density in kg/m³/g/cm³, velocity in m/s/km/h, area in m²/cm²/mm², length in m/cm/mm.

Math & Numbers

Duct Size Calculator (Flow Rate × Velocity)

Size a duct cross-section from the air flow rate Q and the design mean velocity v: area A = Q/v. Circular duct diameter D = √(4A/π). Rectangular duct with aspect ratio r = a/b gives b = √(A/r) and a = r·b, plus the ASHRAE equivalent diameter D_eq = 1.30·(a·b)^0.625/(a+b)^0.25. Flow rate in m³/s/m³/h/CFM, velocity in m/s; dimensions reported in mm and inches.

Math & Numbers

Heat Conduction Calculator (Fourier's Law, q=kΔT/d)

Compute 1-D steady-state heat conduction through a flat slab (Fourier's law): heat flux q = k·ΔT/d (W/m²), heat flow rate Q = k·A·ΔT/d (W), and thermal resistance R = d/(k·A) (K/W). k is the thermal conductivity (W/(m·K)); ΔT is the temperature difference (K; a °C difference equals a K difference, a °F difference is converted by ×5/9); d the slab thickness; A the cross-section area. ΔT may be negative (indicating reverse heat flow), but k, d and A must be positive. Thickness in m/cm/mm, area in m²/cm².

Math & Numbers

Heat Convection Calculator (Newton's Law, q=hΔT)

Compute convective heat transfer (Newton's law of cooling): heat flux q = h·ΔT (W/m²), heat flow rate Q = h·A·ΔT (W), and convective thermal resistance R_conv = 1/(h·A) (K/W). h is the convective heat-transfer coefficient (W/(m²·K)); ΔT is the temperature difference between the surface and the fluid (K; a °C difference equals a K difference, a °F difference is converted by ×5/9); A the heat-transfer area. ΔT may be negative (indicating reverse heat flow), but h and A must be positive. Area in m²/cm².

Math & Numbers

Heat Exchanger LMTD Calculator (Log Mean Temperature Difference)

Compute the Log Mean Temperature Difference (LMTD) of a heat exchanger for parallel or counter flow. Parallel flow: ΔT₁ = T_h,in - T_c,in and ΔT₂ = T_h,out - T_c,out; counter flow: ΔT₁ = T_h,in - T_c,out and ΔT₂ = T_h,out - T_c,in. LMTD = (ΔT₁ - ΔT₂)/ln(ΔT₁/ΔT₂), or ΔT₁ when ΔT₁ = ΔT₂. A non-positive terminal difference (temperature cross) is physically impossible and is rejected. Optionally, with the overall heat transfer coefficient U (W/(m²·K)) and the heat transfer area A (m²), the heat transfer rate Q = U·A·LMTD (W) is returned. Temperatures are used only as differences: Δ°C = ΔK and Δ°F ×5/9 = ΔK; the LMTD is reported in K.

Math & Numbers

Heat Radiation Calculator (Stefan-Boltzmann Law, Q=εσA·T⁴)

Compute thermal radiation from a blackbody/grey body (Stefan-Boltzmann law): blackbody emissive power E_b = σ·T⁴ (W/m²), total radiated power Q_rad = ε·σ·A·T⁴ (W); with an optional surrounding temperature T₀ it also computes the net radiative exchange Q_net = ε·σ·A·(T⁴-T₀⁴) (W). σ = 5.670374419e-8 W/(m²·K⁴); ε is the emissivity (0 < ε ≤ 1, blackbody ε=1); T is the ABSOLUTE temperature (K) — °C and °F are first converted to K (this is an absolute temperature, not a difference); A is the radiating area. Area in m²/cm².

Math & Numbers

Heating Load Calculator (Envelope Transmission + Infiltration)

Estimate the heating (heat-loss) load of a room by the simplified steady-state method. Envelope transmission loss Q_trans = Σ(A_i·U_i·ΔT) over surfaces entered one per line as 'area,U' (U in W/(m²·K)). Cold-air infiltration loss Q_inf = 0.018·ACH·V·ΔT (W), where 0.018 W·h/(m³·K) ≈ ρ·c_p/3600. Total load = Q_trans + Q_inf, optionally multiplied by a safety factor (default 1.0). ΔT = indoor - outdoor (heating, >0). Temperature in °C/K/°F (only differences matter), area in m²/ft².

Math & Numbers

Hectare to Acre

Convert hectares to acres with configurable decimal precision

Math & Numbers

Hectare to Square Meter

Convert hectares to square meters with configurable decimal precision

Design

Image Extract Region

Extract a specific rectangular region from an image by specifying area dimensions and position

Math & Numbers

Moment of Inertia Calculator

Calculate the second moment of area (I) and section modulus (Z) for common cross-sections: solid circle, rectangle, hollow tube, and I-beam. Results in mm⁴ and cm⁴.

Calculator

Mulch Gravel Soil Bulk Bag Estimator

Estimate how much mulch, gravel, topsoil, river rock, sand or compost a landscaping job needs. Enter the area shape (rectangle, circle, triangle or tapered bed/border), dimensions and depth, then pick a material from the built-in density table (or a custom density). The estimator returns volume (m³ / liters / yd³ / ft³), weight (kg / lb / tonnes), the count of 1 m³ or 1 yd³ bulk bags, small retail bag count, optional cost, plus depth and allowance warnings. Metric and imperial units supported.

Math & Numbers

Orifice Flow Calculator (Bernoulli, Q=Cd·A·√(2ΔP/ρ))

Compute the flow rate through a thin-plate orifice for an incompressible fluid (ISO 5167 Bernoulli form with discharge coefficient C_d). Orifice area A=π·d²/4; volumetric flow Q=C_d·A·√(2·ΔP/ρ); mass flow ṁ=C_d·A·√(2·ρ·ΔP); throat velocity v_orifice=C_d·√(2·ΔP/ρ). If the upstream pipe diameter D is supplied the diameter ratio β=d/D is also returned. ΔP≥0, ρ>0, C_d in 0..1 (default 0.61 for a sharp-edged plate). Diameter in m/cm/mm, pressure in Pa/kPa/bar/atm/psi, density in kg/m³/g/cm³; volumetric flow reported in m³/s, L/s, L/min and m³/h.

Math & Numbers

Overall Heat Transfer Coefficient (1/U=ΣR)

Compute the overall heat transfer coefficient for series thermal resistances (flat-wall model): total resistance R_total = Σ R_i (K/W), thermal conductance G = 1/R_total (W/K), area-based coefficient U = 1/(R_total·A) (W/(m²·K)), and if a temperature difference is given the heat flow rate Q = ΔT/R_total (W). Each R_i is a layer resistance already containing the area factor (e.g. convection R_conv=1/(h·A), conduction R_cond=d/(k·A), fouling R_foul=R_f''/A). Enter one resistance (K/W) per line, at least one, all positive. ΔT may be negative (reverse heat flow); a °C difference equals a K difference, a °F difference is converted by ×5/9.

Math & Numbers

Percentile to Z-Score Calculator

Convert a normal percentile, tail area, or central area into a standard normal z-score

Data Visualization

Polar Area Chart Generator

Generate interactive polar area charts to visualize data in circular format, perfect for comparing categories with cyclical patterns or radial distributions

Math

502 tools

Browse 502 online math tools for working with math operations, data, and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

Conversion

369 tools

Browse 369 online conversion tools for transforming data and files between supported formats. Use them in your browser with secure server-side processing.

Meter

33 tools

Browse 33 online Meter tools to process, convert, validate, and manage meter files and data in your browser.

Square Meters

9 tools

Browse 9 online Square Meters tools for working with square-meter values in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

Data Visualization

57 tools

Browse 57 online data visualization tools for working with data visualization tasks in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.

Visualization

69 tools

Browse 69 online visualization tools for working with visualization data and files in your browser. Text inputs are not stored, and uploaded files are deleted after 6 hours.